There is a particular user in the tags I follow that keeps making micro edits (tags only) to questions they answered themselves in the past. The revisions are clearly aimed at drawing new attention to their answers. Revisions on questions they didn't answer are almost absent. Some questions have already been tag-edited multiple times by them.
I once had a discussion with this user, explaining that they kept polluting the front page at the expense of questions that deserved proper attention. That made it stop for a while.
Now, since a couple of weeks, this user is frequently making these tag edits again.
I think this is unacceptable. If three or four others users would do the same thing the front page in my tag would render utterly useless, making this a typical Tragedy of the Commons problem, i.e. one person consuming a common resource without breaking any rule, but nevertheless damaging the community.
I think this should stop. But I'd like to check here if my feeling is right. What is the consensus here?