Hi Will and thanks for reaching out!
This is actually something that has come up in our feature request forum. It looks like it is currently under review and I was able to confirm that in our system as well. I’ve gone ahead and noted this thread to the ticket so it continues to be on our radar, but I would also suggest heading over to the feature request forum and adding your vote–that will provide you with updates on the development as progress is made and is the best way to stay in the loop with what’s happening.
So sorry to not have more of a concrete solution for you here, but does this at least help? Please let me know and I’d be happy to answer any follow-up questions you might have about the ability for Community Events visitors to view and edit their past events.
Thanks!
Geoff