For me, searchable is behind letting writers actually organize their profile pages the way publications can. Medium would probably draw a whole lot more writers (and, thus, their readers) if they let us clean up the dog’s breakfast otherwise known as the profile page.
But — would be icing on the cake if you could go to a writer’s page and see it organized the way they want it (per above) — and also see all they tags they write under. It would be almost to good to believe.
I’ve been griping about the state of the profile page since 2016, though, so I’m partial to my own idea. But then, aren’t we all?! :)