Board Thread:Support Requests - Community Management/@comment-38078079-20200115104002/@comment-168424-20200115173955

If the amount of work doing corrections becomes a problem, a block is not out of the question. A short block of a few days sends a strong message that an editor needs to be more careful. I've had to do this in the past. Usually editors who do this are a bit OCD, but they are also highly motivated (for a time at least). Otherwise, if the quality trends up and the mistakes trend down, you should just see it as a net benefit.

Oh, and I've had to deal with this exact issue at least twice. The first time the rest of the admin group voted to permaban after seeing a lack of expected improvement (I was against the permaban), but the second time the contributor became one of the best things to happen to the wiki.