The idea for permanently editable posts pops up every so often. Here's @elvismercury's post about it. (Gosh, it sure would be nice if he came back, wouldn't it?) I was thinking about a variant of that idea today.
Could we use wiki-style posts? I'm thinking about some of the territories, like ~bitcoin_beginners, that want to have evergreen resource posts. It would be nice to be able to have our "official" post for certain topics that can be updated by stackers and plebs other than the OP.
I'm not sure exactly what the price and equity mechanisms should be, but it seems like there's something here. It would obviously cost sats to make edits and I'm thinking it should cost more sats the more substantial your edits are. Then your revenue share on the post would be something like the share of sats you've put into the post (posting fee + all edit fees).
This would probably need to come after making rewards more compatible with zapping evergreen content.