I have a question on Stack Overflow which some one has taken the liberty of editing massively. I reverted the question, and in my re-revision stated, among other things, that I felt the edits missed the point of the original question.
A little while later I received a personal email from the user in question, trying to apply emotional pressure, which I chose to ignore.
A few days ago, I find that the question was massively edited again by the same user, which, again I rolled back. I have no idea why this user feels the need to hack my question, but I do feel that it's inappropriate.
Just a few minutes ago, the user again edited my question, but this time the changes are trivial enough to overlook.
How can I stop someone from making massive changes to a question which I feel are at odds with the original?