There is a crawler which keeps restoring old revisions on my wiki. It's a wiki for a small community where actual contributors don't want to use accounts, so making the wiki not editable by everyone is out of question. There already is the captcha plugin installed, but it doesn't appear when restoring old revisions, so useless in my case. I tried disabling viewing old revisions as well, but restoring was still available so it didn't work out.
That's why I want to disable the option for restoring old revisions, preferably only for random IPs.