Can you invite people to events that don't have an account via SMS and have it handled that way or do they need an account and the app?
I think being able to support people not on the app is the big thing I want (then the network may grow or not overtime, but at least it's immediately useful even without other people on it).
One other suggestion would be a default retention period or “fuse” people can set that something like 6 months, but can be set anywhere from 1 day to 1 year.
The other networks make it so hard to scrub old posts, I think there’s value in old stuff getting automatically dropped.