This was the entirety of Peter’s post:
That looks like Jr. Modding to me.
That’s a good and reasonable attitude. With that in mind, best practice IMHO would be to politely point out that Czarcasm is engaging in an hijack of the thread. The idea isn’t to shut him down, but rather to point at that his posts are irrelevant to the main question. (I’m not sure his posts are in fact irrelevant: I’m just attempting to re-express your position in an appropriate manner.) I’ll note that hijacks are permissible and occur, but that it is polite to acknowledge them as such.
(As for your examples, one was a perfect match, the others less so, again IMHO.)