@dredmorbius That's definitely true. I'm thinking a defined public timeline expiration period, say 36 or 48 hours, combined with the option to easily save to a clipping folder only viewable by participants in the clipped thread. Objects (whether posts or threads) in the clipping folder could be reactivated by reposted to the public timeline, as long as all participant accounts are active and haven't blocked the clipped object.
Clearly, I've thought more about this than even I realize...
@dredmorbius I was late to Usenet, probably getting started on it no more than a couple months before the fateful September. Casual Reddit user, and occasional chan lurker out of sociological interest. Fertile ground for emerging culture, because it's heavily fertilized.
I keep thinking my perfect social service would merge timeline from Twitter, auto-expiring posts from chans, single sign-on + anon accounts from Reddit, and a loosely-coupled long-form capability from Medium.