First of all I welcome this idea, and think it's ok if there's many different types of encyclopaedia on different perspectives. Now, how will a decentralised wiki deal with something like a rando claiming to be uni professor and inserting thyself in admin position over time? How is activitypub helpful in writing wiki?(Edit credits?)

Finally a site you might find helpful: https://wikiindex.org/ (https://web.archive.org/wikiindex.org/ as it seems to be down)