A few years ago, a couple of friends and I created an online web-game called Planetarion with 180k players. As we were just three people, we had to deal with email support ourselves, and I recently found a CD with quite a few of those old emails. Have a look at a [few examples of the kind of abuse](http://mr.fudgie.org/pabuse.html) you have to deal with when running a huge site that goes PayToPlay to stay alive after advertising broke down. 
