Board Thread:Support Requests - Community Management/@comment-3560445-20140524134954

Is it right that I should block someone with a reason that the user has been blocked/doing edits of bad faith on another wiki? Because I'm kinda stuck in that situation.. He hasn't really done any harmful stuff to my wiki but has done harmful stuff in at least 2 wikis... Should I wait for a good reason to block that user or should I block him already to prevent any thing from happening in my wiki that has happened in the other wikis? Thanks :)

P.S. He has been blocked in my wiki before for a minor reason. 