I keep feeling frustrated as valuable knowledge for my different hobbies over the last years became siloed away in corporate social media. I believe wikis could be a way out, but can we have decentralized, federated wiki software that can kind of talk among each other?
This is what I mean. Lots of small wikis, like subreddits, like the old forums, only that a wiki setup seem to me a better way to collect and present knowledge than the forums, mailing lists, facebook groups, subreddits or wherever we used to put our stuff.