There's a lot of room for improvement with the quick reply box, but JS is hard to make compatible with everything else.

>we should probably add moar stuff to teh FAQ
The FAQ is quite outdated (I didn't rly touch since I became the admin), there's a lot to change there... It's a work that's being stalled for years now

>I actually find the older Heyuri design better on smartphones somehow
Old design was better at emulating the desktop experience but that's not what u expect by default (and you can always request desktop view). Stuff like unwanted margins are removed now
But feel free to share what exactly you think used to be better on smartphones b4 the change