Do not bump topics from offtopic comments?

Should offtopic comments bump up topics? IMO, offtopic discussion is not “real” discussion. Seeing a topic at top with 7 new comments only to discover that all of it is offtopic, meta discussion, is annoying and disappointing.

As an example, there is one topic on the front page (don’t want to link it), that was bumped by the biggest offtopic discussion I’ve seen on Tildes so far. The discussion itself is not wrong, and is quite interesting, but it’s not about the post. The comment chain should IMO either be in it’s own topic, or not bump the topic up.