>Is there still somewhere on the web, perhaps on Reddit or another platform, where you can find such posts and discussions?
If they exist it would be wise not to link it here, or else the same fate would befall the new community. My advice is to search for a small community around a niche topic (say a specific text editor or programming language).
There are some great Reddit subs for niche projects, the trouble is discoverability. Those I’ve found have always been via obscure links or a chance hunt after finding a git repo.
