Never, and never will. I don't know what do you mean by warez scene. I don't download anything except movies and music. And barely even that, because I already got most of my stuff on original DVD's / CD's. So I download only something that I can't buy.
I've been managing forums for long time, and I never quit. Most of my sites failed, but I always made another one, and another one. That's how I learned working with every content managment system that's out. And every forum script. Experience is most important. You can't learn anything if you make one site, and only learn that one CMS/forum script. You must experiment to actually learn something.
Most of my time I spend online, and I can't say that I have a social life. But fuck it, not everyone can be user friendly.