I intentionally seek out the humorous sections of PC and try to provide my own humor. The examples you gave wouldn't appeal to me either, although I try to understand that people do vary with what they find humorous. I'm sure I bomb out sometimes, too, in some people's thoughts.

I particularly don't appreciate jokes that make fun of people for things they can't help or that suggest that other people are stupid. I do find them acceptable only if the person who posts them has the same problem or if it is for a group of people who understand what it is to have a similar problem. I don't appreciate most jokes about the mentally ill told by people who aren't that way, for example. Thanks for reminding us all that we need to be careful.