I'll skipped to fifthed, then.
Sixth
+1
+2
In every case the poster would whine "this is on topic" or would do a sentence of two on topic.
I have to agree with you on this. In an ideal world, we would all be mature all the time, but this stuff does happen.
-posting something off topic - "transformers are better"
Slightly Off topic And evolution are fine. Don't do the other two.
I disagree with this, there is nothing wrong with that on its own, it is when it goes on too long that there is a problem.
As I see it there are two problems with the off-topic.
1) When a thread about one thing becomes about two things.
2) Complete thread derailing.
I don't see why the solution Meg put forth couldn't work though.