Unfortunately. I had to tighten the screws on my private server as well. Most of those scrapers are really, really, dumb, too. When encountering a public repository (both git and mercurial), instead of just pulling the repo (a rather efficient operation), they just follow through the web pages and generate every page in every which way. Still working on some smarter rules, but so far i managed to reduce traffic to my server by (very roughly) 90% without affecting most legitimate users.

There are still a few things i want to implement to detect bot activity even better and have to ability to automatically block specific subnets when bot activity is detected from those IP's. But that's all very specific to my private server and unfortunately wont be applicable to the monastery.