If I understand correctly that existing feeds can be altered later by the creator, then this is still quite an improvement over the old way that required potentially more limiting admin support. By allowing for such "mods" of not a community but rather of these feeds (again, rather than concentrating the authority solely in the hands of a full admin), it democratizes the process overall. Tbf not very well, but a little bit, and that's not nothing.

And if only a tiny change was made to more easily list out the full set of communities present in a feed (the copy button didn't seem to do that for me, but maybe it could become like a meta-sidebar feature), then it would democratize it still further to allow any user to see what communities are in those feeds - even those lacking a PieFed account, who simply wants to subscribe to those same ones while remaining on their existing Lemmy account?

Anyway, it's a step forward, however small or large, and that's worth acknowledging, woo-hoo! 🥳🎉