[rland]

It's a huge problem in non English speaking countries, like Myanmar. Overtly hateful speech remains up because Facebook cannot find enough people fluent in local languages to moderate.

Much more controversially, I think it's a problem in the English speaking world as well. A lot of disinformation could be removed from the platform with human moderators and the will to enforce. But again, even if we wanted to do that, there are big unanswered moral questions.