Yeah they get a lot of users due to the free plans they offer, so I imagine there’s just a lot of reviews as a result, both good and bad.
Also due to the free plan and being commonly used by home lab groups or small businesses, I think there are a lot of users that don’t fully understand what they’re getting into with CF and may be upset when they find out later on.
If you follow their ToS and understand what cloudflares proxy is doing to your traffic then it all works just fine.
That actually makes more sense to me compared to most premium features. Higher quality directly costs more money to stream.