I'm not sure who you are, but you're wrong.
1) I have never threatened a lawsuit.
2) YouTube backs me up because COPYRIGHT LAW backs me up, and if you go and read their policies you'll notice that they would not take my side if they felt that copyright laws did not support me. If I downloaded a video and uploaded it as is, it would not qualify for a Fair Use defense and YouTube would deny my counterclaim. A YouTuber can file a lawsuit whenever they want - When YouTube approves a Fair Use claim, they're essentially saying to the other YouTuber, "GeekyNet's claim of Fair Use is valid and we see no reason to remove his video or give you ad revenue." The other YouTuber can file a lawsuit, and my claims would hold up in court.
3) There's no need to be rude or jealous mate.
4) I'm not a crook.
Thanks for your insulting rant though, if you need help growing your channel I'm happy to help. I would appreciate it if you actually looked up Fair Use because I can justify all of the videos you deem questionable with US Law. If you need more help with understanding it, I'll help you. I have years of experience helping people with Fair Use, I've done extensive research into copyright, trademark, and patent laws, and I even have been a paid copyright law consultant and patent writer in the past... I know what I'm doing, and although I'm offering my help to you, I really don't appreciate your level of disrespect.