Board Thread:General Discussion/@comment-25855974-20160618061354/@comment--20160618063152

The short answer is no. There's is no 100% sure way to protect yourself from someone changing IP's or using alternate accounts on a wiki.

That doesn't mean to just give up and lose hope though. The strongest strategy to handle such situations is to ignore them, revert their edits and to block them without so much as giving them the time of day.

However, while there is no 100% guaranteed way to stop someone from changing IP's or accounts, we can slow them down. If certain IP's are similar to one another a range block can be applied to the community. There is also the use of checkuser which aids in similarity between accounts, but if the user is switching IP's frequently it does not yield much results.

A more proficient method of protection is the use of abuse filter. The filter can be set up by Staff or a Vstf that will detect specific certain edits that the filter is set up to catch. There is the option of denying the publish of a specific edit, or blocking the user who tries to publish a specific edit. This is a powerful way to combat specific vandalism by a user who continues to return under another account. As all the work is caught by the filter if set up correctly.

If this is related to a chat issue and the same user is joining chat under different accounts to troll, then abuse filter will not help at all in that scenario. So in that case the best way to handle the situation is back to the original plan of just ignoring/reverting/blocking. You'll just have to take your chance when blocking accounts you aren't sure of that you suspect being the user you're trying to avoid. If it's true there is no similar IP's between every account it's just a matter of catching them early/blocking and moving on. Appointing more chat mods can help if the issue is within chat.