I follow what feels like a lot of mailing lists of libraries that I use and I think that there is a lot to learn by the questions people ask in them. I don't ask many questions in them and I answer some, but not lots of questions that people ask. I try to be the first to answer a question in which I know the answer, it's kind of a game almost. I feel that if I can get to the point where I can answer nearly every question that's asked, I've successfully learned the framework/library/etc.
Does anybody else feel that they've learned from following lists? Is it a waste of time?