[Tenobrus]

This isn't really true. Anyone can make comets, which are low-trust entities but still can use the network without any parent at all. Stars and planets can move between their parent galaxy/stars respectively. There's so many stars it's very unlikely planets will be unable to find a host they're OK with, and while there's fewer galaxies, they've been distributed reasonably widely, to the point that for sure not all are controlled by the original creators and there's at least plausibly variation in thought among the owners. Beyond that it seems like your view of how stars/planets interact with their parents is more restrictive than reality, the intention is more infrastructure providers than the form of moderation you see in a subreddit.

The thing I think is most problematic is actually the numbers involved, specifically the fact that there's only 4 billion planets (still).