Google isn't saying it that content can't exist in an app -
they're saying the app doesn't have a sufficient level of moderation for dealing with issues that do occur.
What’s a sufficient level of moderation? I’m seriously asking. Would love to see some self reported and also verifiable stats from all the platforms being discussed here.
Any moderation would be a start. Gab's whole raison d'etre is to be an unmoderated social network where you can post the hate speech which would get you kicked off more mainstream networks.
Anecdotally, when I tried Gab, the ratio of violent racist content to normal content was way way higher than on other platforms (even if the absolute amount is much higher on twitter due to popularity, the ratio is lower).