I'm not strict on this type of thing, mainly because moderation already takes up enough of my limited time, topics weave back and forth and people can reminisce and tangents form, major tangents sometimes get a new topic but ultimately, I'm not dealing with it because I've done this for far too long to care now
Trolling - The name comes from trolling for fish, you post baited statements or opinions as fact and expect to hook unsuspecting posters into wasting their time responding. Pretty solid definition there.