In my opinion...
when I returned a few weeks ago after a long absence, I was disappointed to see "New Member Introductions" over-run with personal ad, webcam/skype, show-off, model/celebrity, etc threads.
It just looks like sheer laziness - they join up, go to forum one, page one and just flop it on the table without even looking.
I suppose it can be hard to differentiate between introducing yourself and saying what you're looking for/into, but still...
But then I turn my back for a couple days and find it's now spread to "Et Cetera".
Now I'm quite keen on peen, so there must be something SERIOUSLY wrong when even an old pervert like me is getting dick-pic-sick.