Paranoia on forums can really mess with your head. It got the better of me when I was 18 and into making games in QBasic, participating on a forum called QB RPGs. I got so paranoid, and so upset with a few individuals that I pretty much imploded psychologically. Reminds me a lot of what happened to m1469 actually. It kinda ruined my love of game programming for a number of years. It is during this time I became a musician, amusingly, music healed me and now I enjoy both music and programming again.
I really think the internet has this odd potential to both dramatically amplify and enhance positive interactions between people---enriching our lives, but it has EQUALLY large potential to cause psychological chaos. you have to be careful with it. This is why I use internet filtering software, to limit the time I spend and to reduce temptations (of many kinds) which might waste my time or poison my mind in various ways.
That said, I will probably leave again for a while but I'll pop in from time to time. Unfortunately I can't seem to configure my filter for time for a specific site, only for the entire filter all at once..