A few suggestion for chats

Something I would like would be audio messages. And of course in servers you would be able to allow or not.

Second, when you type someone's nick and tag, like

Wumpus#0000

Would be a "menu" where you can select

Block, Add Friend, and things like that.

And last is voting

Yeah there is something kind of that way but it doesn't work really well (reactions)

Yes it works but it's kinda broken.