Thread:RansomTime/@comment-17897872-20141001043535/@comment-303594-20141002125945

Revision IDs are a key part of Mediawiki, so hiding them isn't an option.

I personally find that the best way to deal with problems with achievements is turn them off, but if your wiki wants achievements, threatening users who want to cheat the system with blocks is a good secondary option. Wikia can't remove badges from the list, sorry.