Comment by necovek

Wouldn't it be nice to have a good study that supports either your or my view?

FWIW, I've never been stopped by Anubis, so even if it's much more rarely implemented, that's still infinitely less than 5-10 captchas a day I do see regularly. I do agree it's still different scales, but I don't trust your gut feel either. Thus a suggestion to look for a study.