probably stop making multiple threads about the same topic

[Fynlar]

To be fair, this is one of those situations where the answer is literally just "don't be upset."
He's not really breaking rules. A disruption is only because people feel disrupted, not that there was any actual disruption in using the site or fourms.
If you stop feeling disrupted, there's no disruption.

???

"[says something blatantly offensive]"
*people get offended*
"well I did nothing wrong; it's your own fault for being so offended!"

Necrobumping a bunch of old threads specifically to be disruptive is disruptive. Stop making excuses for it.