I sometimes wonder if my lack of a signature makes people assume that I've been "bad" on the DIS and had that privilege taken away. But I just don't take time or really care about having a signature picture/saying.
I've never gotten points. And some people may be horrified to hear this, but I've also deleted my tags more than once
on purpose.
It doesn't really bother me and I probably do it myself, but people tend to assume that everyone has kids. I have been asked several times if my avatar is my daughter. I don't have kids, and that picture is of me in the late '70s

.
Some users seem to assume that everyone knows who certain posters are. For instance, there is a user who is apparently extremely well-known on Theme Parks, but I never heard of him until sometime recently

. But most of the people on Theme Parks have probably never heard of even the most well-known posters here on the CB that we are all familiar with.
Some people assume that the CB is just a mean, scary place. Or that the Budget Board is only made up of freakishly extreme tight-wads. But I assume things about various forums, too. There is one particular DIS forum which
to me is the strangest of them all

.