This hits home one of the things I consider to be a problem with the single platform approach.
Swastika's are actually not legal in some parts of the world, in others they're taken as a symbol of peace.
When there is content moderation it feels weirdly totalitarian because the political stances of (say: Europe) are wildly different than the polarised extremes of the USA.
A platform should not moderate content, twitter (and facebook) want the perks of being a platform (being not legally culpable for content moderation) and the perks of being a closed community (strict moderation on issues they perceive as problematic, usually to investors).
This is having your cake and eating it too.
Twitter should not be a platform, it is beholden to a global standard and rules and culture are too diverse.
The same is true with Facebook.