I saw this site climb to 17k bots rapidly.. now mine's at 20k
What i'm seeing reminds me of that anubis breakthrough - so distributed that rate limiters won't work.
Generally the IPs are generally doing this or hitting what's new:
This is indefensible with fail2ban isn't it. I might have to move to cloudflare for a while until i finish my system
The one difference versus Xenforo.com and my site was that the blast was slightly less intense on Xenforo and was half the duration.