https://www.getguru.com/ has a so verification where each page, called cards, has an owner or group of owners and a set expiration period (1 week, 3 months, 1 year etc.). Past the expiration the page gets marked as untrusted (it's on top of each card) and require to be reviewed by the owner(s). Any user can also mark a card as untrusted, prompting a review. Every expired card owned by owner get displayed to their owners in a dedicated UI (page) and can be quickly reviewed. The editor in Guru is a bit clunky at time (worst than Confluence... if that's possible) and not really suitable for something like specs, but I have yet to find anything that actually tries to prevent wiki rot.

We also evaluated Confluence with this https://marketplace.atlassian.com/apps/123/better-content-ar... but if the concept is not a first class citizen in the wiki, it does not work as well.

I tried to convince the people at Clubhouse (with their Write app in beta) and Notion, but I don't think they get it.