I myself used to be a VERY regular visitor until recently. I justified my nightly forays into this chatroom by telling myself that I was going on to have Islamic discussion and that it was a 'Halaal' way to meet Muslim girls. The talk was on 'Satan's web', and it really opened my eyes with regard to the evils of the Internet, and the effect that it has on SA muslim youth. I spoke to many muslim girls of many ages. Some of them very Islamically inclined and some of them not.
Many fathers are totally oblivious of what their daughters are doing late at night on the internet.
Sometimes the conversations we have are Islamic and sometimes not. But it is clear that the majority of the talk has nothing to do with Islam. Some people argue that this chatroom is a good thing as long as you are going on for the right reasons. For example, I know of a few married Muslim couples that first met in this chatroom. Personally, I think that this chatroom does more damage than good.