I had a forum which was literally 90% spammers (I didn't even realize it - I had built the site, never actually launched it - then a few years visited to find h

I had a forum which was literally 90% spammers (I didn't even realize it - I had built the site, never actually launched it - then a few years visited to find hundreds of thousands of posts, which seemed to all be bots.) the traffic was insane though. That said I figured I could just sell the domain on sedo.com. So I listed it, and even though it didn't get any bids, it did make money through their landing page program.