Well, the title pretty much sums it up. I’m not anti-tattoo at all, might get one myself someday. But I sure as heck would not get a tramp-stamp, in large part because of their association with, well, trampiness.
It’s kinda like using a pocket-protecter. Sure, go ahead and use one. But you WILL give off a strong geeky image if you do. Same with tramp stamps, IMHO.
So, why get one of these if you actually are NOT a tramp/slut?
Because you like them. I tease my best friend about hers, calling it a tramp stamp. Then she hits me…
Advice I offer to my son: if you think a woman has never, ever awoken of a morning and cried out in despair “God, I am such a slut!”, run away. Or if she has more than two cats.
Except that…I don’t like them.
Because the times when they are visible are likely to be the times you want to project a well, trampy image? It’s not like women typically show up for business meetings wearing a bikini.
I thought it was the other way around now. They used to indicate trampiness, but are so mainstream now, that they don’t mean much of anything anymore.
Ymmv
Because they think theirs isn’t one. My sister got one just slightly off center and believes because it’s off center and a Celtic knot that is can’t be a tramp stamp.
Eh, I occasionally still wear a wife-beater, despite not wanting to project an image of occasional wife-beating.
It’s like shoes. They’re not getting them for you. 
Isn’t the whole point supposed to be to reject popular culture and its views? Aside from the fact that most of popular culture is built almost entirely out of the rejection of popular culture, of course.
Some guys like tramps raises hand sheepishly
(Grain of truth there, but I think the main reason is that it’s a cool tattoo, and that getting one doesn’t automatically make one a ‘tramp’, simply because that is the label put on by some uptight people. Of course, full confession, I have a couple of tattoos myself, though not on my lower back. ‘Tramp stamps’ are almost as ubiquitous these days as arm band tribal tattoos…I’d almost say that they are mainstream, at least among the tattoo crowd. Well, at least among my own tattoo covered friends, anyway)
-XT
It does give us guys something to look at. I’ve only had 1 tattooed girlfriend and she has a big butterfly there on the lower back. I’ve heard that those with tramp stamps like it from behind and that is certainly the case with her.
Well, if you think you’re going to get bored, maybe take a book with you.
I have nothing constructive to add except that the German for tramp stamp is Arschgeweih: ‘ass antlers.’
Germans are funny? Who knew?
Possible reasons: No proven scientific connection between placement of tattoo and sexual activities, tattoos anywhere on a woman often considered ‘trampy’ (you know, like swearing), don’t care about ‘tramp’ labels, like having lots of sex with different partners and hoping for a reputation.
When I was in high school, girls would walk around wearing Cheap Trick (the band) T-shirts.
This is just a more permanent way of an old tradition 
My friend has one that is a crossword puzzle.
Germans are some of the funniest. Mozart wrote a canon called Leck mir den Arsch fein recht schoen sauber - translation: “Lick me in the ass fine well and clean” - in 1782. Some of the lyrics:
Mozart was Austrian, born in Salzburg.