See revision 5 on https://tex.stackexchange.com/posts/195610/revisions: the title was improved (good), but the TeXstudio tag was added and the word was made bold in the question; however, this is unwarranted because TeXstudio is sort of irrelevant here. This example is typical of his recent edit frenzy (probably a side-effect of the site's review badges).
What are your thoughts on such edits? And, if you agree that they are questionable, what mechanisms are there to stop such an edit frenzy? Should the guy be contacted directly? If so, how? Is it up to the moderators?