I thought StackOverflow was pretty great. This is an unpopular opinion but I think a lot of the questions that were closed really deserved to be closed. Otherwise it would have been a firehose of the same basic questions over and over again. For every person who posted a question and got mad that it was closed, there were probably 100 people who googled something and found a useful StackOverflow answer that was relevant and useful to them although they never posted their own question or even made an account on the site.