It's a little more political than that. Fullscreen (who represent the Fine Bros) has a very cozy, personal relationship with YouTube. While some random person i

It's a little more political than that. Fullscreen (who represent the Fine Bros) has a very cozy, personal relationship with YouTube. While some random person issuing 10,000 DMCA takedown requests would likely get ignored; when Fullscreen does it, some VP at YouTube calls some VP at Fullscreen to make sure the request was legit. If so, they let it run its course. There are few enough (more than 100, less than 1000) major YouTube distributors that YouTube just manages the relationships individually. This is often cited as a perk of joining a distribution company - they have greater clout in resolving disputes with YouTube because they have access via back channels due to representing so many content creators. The entire abuse process on YouTube is far more manual and bureaucratic than most people on the Internet seem to think.