Anyone Else Following Youtubers Who Have Been Changing Their Videos Title Recently?

Not sure if it´s just a coincidence, but I follow 2 or 3 youtubers that have been recently uploading a video with a title, and then changing it hours later to something different.

Is this done for subscribers to think its a different video and click on it again? Could the titles go against Youtube´s T&C and thats why they were changed? Feels like it´s more than a coincidence.

Maybe it´s just my imagination...