Yesterday on my server somebody found these bracers:
I made the screenshot myself, so this is not just something photoshopped. But it is obviously some bug, and it wasn't clear whether the guy wearing them would actually get the indicated stat increases.
Makes you wonder whether if you found these bracers, equipped them, and then started happily chain-killing tons of mobs for experience and loot, that would be considered cheating. Would using a bugged item be a bannable offence, even if you are in no way responsible for the bug and didn't do anything to hack it?