I love the scaling dynamics. Keeping versions is optional for you, you can keep however many versions you want for your data needs. Though, if your ideas/specs/product are popular, they'd be cloned to keep a backup of. The trust dynamic would work that if one of your endorsements ever become malicious, you are incentivized to remove them asap. Or move to another list - known malicious users.
Discussion
Could maybe be a separate list, at the bottom of the page.
Otherwise, people wouldn't find them by searching the page and they might not know that there's a second page.
What about using a traffic-light system for the non-malicious list. Something like:
🟢 active events
🟡 obsolete events
🔴 deprecated events