If this is meant to imply that moving topics will trigger neither emails nor new topic notifications, then this information is outdated. I just moved an old release announcement into the announcement topic (which users are watching by default) and it looks like people were notified (at least I received a notification). So I immediately moved the topic back out of the announcements category, hoping that I would prevent emails from being sent out, but it didn’t, even though the emails were sent about 10 minutes after I had moved the topic back again (I just checked the exact times: topic moved out of announcement category: 11:12, user_watching_first_post email sent: 11:26). Is this supposed to happen?
In any case, I’d like to raise this old question again: is there anyway of moving topics into a different category without triggering notifications? Perhaps there could be a setting for “don’t notify new topics inactive for more than than … days”? That way you could move around old (in my case: imported) topics without people getting irrelevant notifications.