Content hosts are damned if they do and damned if they don't. If they take their time and are cautious with reports, people end up swamped with garbage that people complain about. If they try to be quick to clean up the garbage, some clean stuff get caught and people complain.
The only frequent obvious problem I see is Youtube not telling people why their videos get hidden or taken down or down ranked. Long time creators get left in the dark from random big changes to the platform that could be solved with an email.