This is why penpal language exchange sites were so valuable like Lang-8 back in the day. You'd get corrections from actual native speakers and could dump all those corrected sentences into a database to link standalone words to actual usage.
So not post based like lang8, but more granular. I do expect people to write little entries/anecdotes piece by piece though and share them. There’s a pretty thriving telegram community so I’m hoping that solves the community aspect and gives people a place to exchange. (There’s also a subreddit but it’s not yet very active)
Finishing them is not my next task, but the one after. So soon!