Oh, is that why most mbin sites have gone registration-only?

kagis

https://joinmbin.org/releases/

Create documentation for setting up anubis to protect mbin by @BentiGorlich in https://github.com/MbinOrg/mbin/pull/1706

I expect that this is going to be something of a whack-a-mole game — I saw a post the other day about how some scrapers had started completing Anubis challenges (though it was apparently via doing the work, and I imagine that the cost could just be increased as appropriate).