I've been thinking alot (a lot) about '1 toot at a time fullscreen' kind of app.
It would give one visibilty to the people making the toots.
As in the avatar, the name and the instance name: big.
It would have ways to let one know when people change their display name & avatar.
It would allow custom background, first based on instance, then one would be able to choose per person.
One could compose meme, so create a toot from template.
One could add any toot as a meme source.