Federation largely solves these problems. The biggest interop issue is sticking to a common/interoperable classification wrt. topic hierarchies, etc. and even then that's quite doable.
Re:The Return of the 90s Web
by kevin_thibedeau on Thursday June 18, 2020 @06:29PM
(#23568848)
A solution would need crowdsourced collective vetting of sites along with a reputation system to keep out spam and bad actors without devolving into Wikipedia style personal fiefdoms.
I mean - maybe it's possible. Perhaps a really focused team could figure it out. (The 'awesome' directories have kind of figured that out, by having specialized directory.) But these personal directories are really sweet because they don't have to cover a topic. They can just be a collection of good stuff, who knows what.