I'm poking at it a bit, doing some optimization here and there.
Yes, bots shouldn't be able to bring a forum down...IF they are behaving, but some aren't and they are hammering the forum with thousands of requests at a time, and not respecting the robots.txt. So that is a thing. I've blocked a few of their subnets, which helps for now.
Most of the tables are pretty well optimized overhead-wise, but some re-indexing is in order, so I'm doing that in the background, which doesn't help speed much.
Would love to move a couple things out of the DB to the filesystem for performance reasons, but not 100% if this old beast actually supports some of what I want to move.
But hey, I still have running motorcycles, and here is a picture of my 4-wheel mutard.