1: Post something you have never done that you think many people do.
2: Read the other posts, if you have done that thing, upvote it. If you have not done that thing, downvote it.
3: If you believe the person is lying, call them out on it in a reply.
4: If you are called out, give the full story.
4a: If you see a thread containing the full story, boost the person you think is right and truthful.
Person who has the most upvotes when the thread dies wins.
I simply don't see the appeal of putting on something I can't easily take off if I wanted to, for its own sake. Yeah, tattoos aren't permanent, a removal process exists. But they cost money and require an appointment to be rid of, on top of the investment of time, money, and pain to buy in. The barrier to entry and the barrier to exit are both too high for my liking.
Ideally you get a tattoo and enjoy it for life. I can't commit to that kind of decision. Not for a funny body picture. If I need a memento to cherish memory of a thing or event I'll get a tchotchke or something.
I have no complaints about others' tattoos. They're more often than not incredible works of art.