When asked what the downsides of Nostr are, one part of that answer is that eventhough a platform can erase your presence, you are absolutely free to footgun yourself out of your own established identity.
But that is still better.
Even without any standards, measures, procedures to 'fix' this unfixable issue, content creators are still better off.
1: re-establishing your audience does not have to take place 'elsewhere', your audience can re-find you in the same app they were already using.
2: political banning could not just take out 1 individual content creator, but whipe out an entire community of creators at/around the same time; whilst key loss/compromise IS an indivual phenomena (unless everyone uses the same corrupt app i gues 🫤).
3: both 1 and 2 allow for easier re-establishing using social networks. "Oh hey our buddy Bob uses a new npub, its this one, you can just conveniently click follow in the app you already using, how nice, dont forget to use promo-code...".
Ceterum censeo NIP-03 omnibus esse.
