User blog comment:Thisismyrofl/Suggestion: New usergroup "Rollback-global"/@comment-11333115-20131003150919/@comment-1330470-20131003151914

I'm sure you're aware that my response to that would be "Ew scripts".

More seriously, the existence of scripts like AjaxUndo (if, as I assume, they do effectively replace rollback) seem to me to actually defeat the entire purpose of the restriction of rollback rights and theoretically open up wikis to easy abuse.