I honestly do not understand the OP because the example given is not really a good one. I would need to see other examples in order to be convinced that it is a real problem, otherwise I think that the females that are offended by these kinds of posts are being way too sensitive.
Talking about PMS in a way of a pun should really not be offensive, and even if it weren't used as a pun it has no implication by itself.
If used as a verb, it starts to get closer to offensive, but really not much more offensive than what many females would say about males if they were to generalize them.
So I really need a better example than what was given. Maybe I haven't seen it because most of the places I browse don't actually have these kinds of posts in it.
