Thanks :)

For crap articles, people can vote them down, which will move them lower on the new articles tab and popular articles tab if they are voted low enough. Also, I can manually delete obviously crap articles, or close articles that don't fit the format.

For crap edits, they can be undone in the history tab of each article. I need to do a little work in making rollbacks easier though.

If I get a lot of traffic, I'll have to write some software to help identify malicious edits.

Oh man. You are going to get a lot of traffic. Please do something to block a spammer's ip. Have a flag button and do a soft delete it after a certain number of flags. Soft delete because you can review to make sure its actually crap and not the top item in your page :) Good luck

I just felt the need for that a few minutes ago, a troll overwrote all of the articles with junk text, and I had no way to easily block his IP. I'll be working on that ASAP.