This is how my coworker does code reviews... imagine comment on a line of code:

"Oh why does this not do this and that.
Edit: Oh I've read few lines below, now I understand. But this may break when this and that.
Edit: Nevermind I realized, that never happens, forget about it."

Let me just emphasise, that this is single comment, so it's basically editted multiple times, before submition.

Like wtf, just delete the comment then?!