#communikeys is the solution to that (false) choice you describe:
Post to the public square, full reach, zero target
VS
Posting in a niche, but giving up reach
The new thing we can do with Nostr is letting you target each post (including all your existing ones) to an editable list of target Communitues.
Your post about sugars can be targeted at a "Peatstr", a "Laser Health" and a "Metabolism Go Up" community.
That way people in the Peatstr community can just get your high signal on Rays research there and not your Bitcoin stuff.
Without you having to tie your posts forever to one specific group (you don't own).
