Regarding Territory Fees:
I think they should revamp the idea completely. Should be a one-time moderate fee (say 25K sats) to create a territory. Creators of territories receive a very small percentage of post made there (15%?) or maybe nothing at all.....Otherwise normal rules apply: Create post/comments to get zaps.
The idea of "owning a territory" just doesn't work in practice. There are a multitude of issues, but the core issue is there is no way to ever "protect" territories enough to make the model work. If a territory named "Photos" became hugely popular, whats to stop someone from simply creating "ReallyGoodPhotos" territories or "FunnyPhotos" and thereby undercutting the original. As it turns out, digital scarcity is a hard problem (haha)...
In order for SN to make money, they should institute a monthly user fee. Something small....maybe 500 sats per month? Something low enough so that the average active user can pay for it via their zap earnings every month automatically.
This then aligns incentives: Users try to create useful content and a site full of useful content draws more users, thus SN benefits from increased user fees.