User blog comment:Sannse/Guest Blog Post - Screenshots and Chat Logs/@comment-26104376-20140625170642/@comment-5448890-20140625171807

This is mostly for Wikia issues between an admin and a user(s), where "incriminating" evidence is needed; in such cases, statements and actual, on-wiki written evidence is the only thing that's actually acceptable, as anything else can be falsified. However, with on-wiki statements, one can simply look up the history, if it isn't still there, to prove their case.