I'm thinking in particular of the latest Victoria Beckham thread which is really quite awful, but there is the Britney thread, plus a Jade Goody thread and a Charlotte Church thread. This stuff isn't news it is gossip of the worst kind and it just seems to be posted so that everyone can be really bitchy and nasty.
I know that there have always been threads like these in the news section, but they seem so much more common these days and there are less and less real news threads. It is very sad that even MN has dumbed down to such an extent.