A short while ago we had severe slowness. Figured out that we had about 4,500 users online, and of course about 4,400 of them being "bot spam". There were many IP's hitting us, and searching the forum for indexing or whatever.

Nighttrain was kind enough to get on the phone with me. Took forever due to the slowness, but one by one we started blocking IP subnets. Eventually it started picking up speed. We still have 3,000+ online, but they will disappear soon as they have been blocked. I will block more if I find them.

Most of them were foreign, and one massive USA company that apparently we were getting nailed by. Hopefully we'll be back to normal soon.