You know who they (you) are: Shodan (Regards, Shodan); Esprix (Esprix); Bricker (Rick); etc. If you don’t sign yours, feel free to offer your opinion as to why others do so. If you do sign yours, why?
I don’t here, but I used to at other sites. Just a style thing, I’d say. -Marley
It was even more pointless at the other site because my handle was just “Marley.” I forget why I have the 23 over here, I’d drop it if I could and just go by my actual name.
And what about the people who don’t deign to put their signature in the actual sig box? So you still see them, even if you have sigs turned off.
My post feels naked without it.
Happy
I’ve always signed posts on message boards with my real name, and I see no reason to stop now 
It’s pretty much force of habit, I guess.
-Andrew L
USENET carry over, pure and simple
-PSM
Think of it as a personal signature - I signed my post just for you. Now don’t you feel special?
Esprix
I used to sign my name, but almost always with a shortened form of it. My reason was so that others would feel comfortable to shorten it to ‘enigma’. That’s what I’m usually called.
I don’t normally sign my name anymore. If people shorten it, it’s either Rebus or enigma, either way, it’s fine by me.
For the record,
~eNiGma
Because some people post long enough messages that their names scroll off the top of the screen, and they’re afraid people won’t remember who wrote it by the time they get to the end of the post.
However, if most of your posts are one-line responses, it’s not really necessary, then, is it?
I’ve always done it, but I have a good reason.
I’m married to another Doper, and we share a computer. I’ve occasionally posted under his user name, and he’s occasionally posted under mine. Signing my posts lets people know that it was me and not Airman who posted.
Robin
A lot of my posts end with a “-B”. It just seems polite, I guess - a holdover from letter writing. After all, the letter receiver knows who sent the letter, return address & content is pretty telling, but you still sign it.
It’s also a sort of “So let it be written, so let it be done” & “Elvis has left the building” feeling, too.
-B
It’s a nice added touch, you can say so much in a sig line.
I don’t have a particularly good reason – I just find it inappropriate not to affix my “signature.” I always sign emails as well, even if they’re only a couple words. I think it’s partly because in that type of email I’m either telling someone under me what to do, and I don’t want it to be overly curt, or I’m writing a rather lengthy analysis piece to my superiors, and I want to signal the end of it.
–Cliffy
I used to do it but have stopped in the last few months because I’ve decided that it’s ‘tired’.
I will often sign a post as it seems more polite that way. Though usually only once per thread, or when the post feels personal to me (as opposed to a simple answer or wisecrack) I also like to sign off specifically with the word cheers, which I find expresses my feeling well, and the short form of my username to give implicit permission to anyone that they can feel free to refer to me by that short form.
Cheers, Bippy
Form & Style…
“It’s a nice added touch, you can say so much in a sig line.”
Except I have view all sigs turned off in my profile
Yours, handy
Are you saying then, that you typed “Esprix” first, and then went back and added the body of your post (considering the fact that “signed” is in the past tense) ?
“Signed” as in “signed every post.”
Esprix
I usually do it… it’s just nicer that way. Of course, it’s a shortened version of my screen name. (typing “Flamsterette_X” all the time would get tiresome)
F_X
Sure, but I have “Fnorderator/Hide Sig From handy” enabled anyway! Aha!