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?
I’m not sure federation is that important on sites that aren’t built around socializing. I think it is sufficient for a wiki to provide a good export mechanism so that it can be archived or mirrored by others.