For me it was my forum HCNET (Higherculture.net) which was closed due to staff shortage. My staff slowly but surely became unreliable due to personal life issues and in the long wrong it hurt the forum. We were about 4 months old with 15,000 post. I could have just hired new staff but I decided I wanted to create a gaming forum instead of a general forum and find reliable staff. So that's what I have done and it's going well thus far.
What's the largest forum you've owned?
What's the largest forum you've owned?