I asked a [question](https://stackoverflow.com/q/48276045/903011) and got a [response](https://stackoverflow.com/a/48279131/903011) which expanded someone's else comment below my question. Since the comment was not turned into an answer this is fine by me.

I [edited](https://stackoverflow.com/posts/48279131/revisions) the answer to add some formatting, links to documentation, etc. and they were automatically accepted.

Reviewing how my question is going, I noticed what I thought being a change in the UI, namely the fact that the last editor is not present anymore. I do not care about this visibility but this triggered me to have a look at the revisions.

I was a bit surprised to see

* the initial answer
* my modifications
* a rollback to the original answer by the author
* an edit by the author replying my exact edit

**I do not assume any kind of malice so I was wondering what such an activity can be?**