Mine has deteriorated to J + squiggly line and even the J is losing some of its J-ness. I don’t know whether I blame computers or laziness. Probably both.
Mine’s different every time I write it, let alone being different to how it was years ago.
When it changed the most was when I was having to sign a lot of things (I was famous! No, I was a manager :() and it became a squiggle.
This is the case for so many people in boring business positions where they have to sign stuff they don’t give a rat’s arse about that I’d be willing to chance a random middle-manager’s signature just by going ‘squiggle, space, squiggle, with the first letters looking more like letters.’ Curlier squiggles for women than men (this is not universal at all, but true on average).
I hate it on TV programmes etc where someone’s signature is evidence they actually signed it.
Similar to Miller’s experience with voting - I’ve had a bank teller ask me to re-sign a document because it wasn’t even close to what they had on file. This was an account I opened only a couple years ago. Mine is also different each time I sign it. It’s basically useless for the purpose but it makes people happy so I keep signing 
Chip and Pin credit cards are reducing the number of times I sign though.
Mine has remained the same since high-school. It’s very similar to my moms because I would write hers for notes to ditch school. The first letter is sort of legible and the rest is wavy letters and lines. I haven’t added my married last name to my signature because I’m so used to signing it one way I don’t want to add another word.
I’ve had the same one since I joined the boasrd, but hardly ever use it any more.
Oh. Wait.
My written signature is just a scribble mostly. I used to write out all the letters, but don’t bother now. I blame those electronic signature pads, where so many of them were so bad, it mostly didn’t matter what you wrote.
I still use the same capital K that I’ve always used and my signature overall looks more or less recognizable as when I started writing; however, I’ve gotten a lot lazier with my last name. It’s 10 letters long and it would always get squished up at the end because I don’t move my hand across the page that much. It’s since devolved into the first five letters more or less correct, then a scrawl until the ending d, which is looped around to make the cross bar of the beginning F.
It’s a J. It used to be my name, but who does that anymore? I’m thinking I just may go with the first initial of my last name, though.
I have taken a course in signature verification for my job and, yes, most people’s signatures will change over time and as a result of particular circumstances (being ill or rushed at the time you signed something, etc.). If anything, if I looked at your signature and it is exactly the same as the one we have on file from when you signed a decade ago, I would find it more suspicious and check it for other signs that it might be fraudulent.
However, your signature will generally tend to have the same structural features over time, for example, the way you handle spacing between characters, how large or small you write, the slant of your writing, the pressure you use, etc. Even if you have more than one signature that you commonly use, they will all tend to have similar structural features because of the way you write. It is extremely rare, for example, to have one signature that is large and ‘loopy’ and always slants to the left and one signature that is small and ‘angular’ and always slants to the right. This also makes it very, very hard to forge someone’s signature if their natural style of writing is completely different from your own - even if you manage to do a very good copy of it, it is not going to ‘flow’ the same way the original does and will also likely feature signs of criminal tremor (when the lines aren’t smooth because you’ve been concentrating so hard on trying to do it right that you inadvertently grip the pen too hard, which produces a shaky line).
My wife’s changes every time she signs something - she just puts the pen down and lets her wrist go into spasm (at least that’s what it looks like to me).
My signature is inconsistent from one signing session to the next. It even varies sometimes when I am signing multiple documents at once.
My signature was once readable. Nowadays, if you know my name you can probably make out what the first letter is, but beyond that is anybody’s guess. My last name is a capital letter followed by a horizontal(-ish) line. I’ve tried actually writing out the following letters, and I just can’t seem to make my hand do it.
Of course, my signature is the only thing I write in cursive (if you can call it that). Everything else gets printed in all capitals.
My signature is recognisable but totally illegible now, didn’t used to be.
It came around because I once had a job where I had to sign a good many documents every day, and it slowly degenerated.
Apparently legible signatures are easier to forge.
I’m in the same club as most people here: my signature has degenerated to a deplorable state. I blame a combination of things: not doing much actual writing any more, those abominable electronic signature pads, and a weakened wrist combined with arthritic thumbs.
Doomed, I tell you, doomed!
It would be nice to just apply a thumbprint…
~VOW
My mom has Alzheimers and in the last year, her signature has changed. It now looks like something a ten-year-old would create. It’s interesting that as her disease progresses and she becomes more child-like in general, that her signature has also become more child-like, as well.
My signature has become just a cursive J with a squiggle over the years. I didn’t even bother to change it when I got married and changed my last name. I like my squiggle.
My signature when I was in high school was just my name in cursive. After I got married (at 19) and had a new name, I had to get used to a new signature and it took on a little more stylization. And by stylization I mean messiness. You could still make out what the first name was, but the last name you might have to ask the first time you saw it, because it wasn’t a common name. I kept that name from 1991 to 2009 during which time it devolved into a first letter that could be argued looked like a K (which it is), though really it looks more like an R, and from there it’s a diminishing in height squiggly line that tapers off and then there is a dash over the top that originated as a dash and a dot (for a t and an i) but fused into one along the line.
When I got married to my current husband I didn’t bother changing my signature, since it could just as easily spell my new name as my old, it’s that abstract. The dash still belongs (first name is Katherine, so it’s for the t) and nothing in my new last name needs to be crossed or dotted.
I considered taking the opportunity to make a nice, pretty new signature, since I envy people with elegant, nice signatures. But then I realized that I’d never keep up with it. I sign too fast and I know I won’t slow down. It’s just not who I am. There are things I take my time with and things I don’t, and signing shit is something I don’t. Unless it’s a card or a letter. I then “sign” by writing my name in cursive. So it’s not my legal signature, but it’s legible and nobody is going to be taking me to court over my holiday card “Your honor! This is not a legally binding holiday card! The signature does not match!” No, that isn’t happening.
I have bad handwriting in general, even when I’m trying really hard. The odd exception is that I can do pretty good calligraphy. I guess there is a switch in my brain that considers calligraphy an art and so it’s controlled by a different part of my brain.