The current state of YouTube is truly dire. The website used to be a beacon for free expression and creativity. Now, it's beginning to turn into a battleground for legal warfare. Nobody's videos or accounts are automatically safe on YouTube; it's the large, wealthy, and controlling corporations which decide that.
The main culpret for the recent drama amongst YouTube users cannot be pinned down to just one individual; in fact, this drama has been building up for a few years now. Ever since the YouTube Content ID system - an automated system which checks videos on the website for copyrighted material - was launched, the path in which the website was taking was already visible.
The Content ID system is flawed and in more than one manner. One flaw with this system is the lack of consideration for fair use. YouTube doesn't (and probably never will) actually review suspicious videos themselves; they don't care about their users, not even their most popular ones. As a result, videos which contain copyrighted material licensed under fair use law are often removed from the website under the grounds of potential copyright infringement which is known to be, in some cases, considerably damaging to the incomes of popular YouTube personalities which create and post videos as a full time job, profiting from ad revenue and sometimes sponsorships. A second flaw of Content ID is its exploitability; the system allows large companies to have videos taken down regardless of whether they are actually breaking copyright law. This gives such companies the ability to effectively censor content which they deem to be demeaning to them if they wish. For instance, Fullscreen - a popular YouTube multi-channel network - have been known to have perfectly legal videos taken down on behalf of their partners, namely the Fine Bros recently. The days remaining of the beacon for free expression are indisputably limited.
To conclude, the reason of which people are annoyed at YouTube for currently is their apparent neglection of the community as of late. YouTube desperately needs to fix this mess before somebody creates a legitimate competitor.