TS is a more organized app for big communities. It’s permission system is also better than discord role system.
Can't really agree with that one.
I'm part of a few major communities that switched from TS to Discord and in my personal opinion, Discord works even better organisation wise. You have colors, roles, nearly the same permission system as TS- just more simplified- and you have a great overview on everything due to the neat UI.
Sure TS is more streamlined interface-wise, because you have everything in a plain white background with channels going down a tree and people are shown in a list (those connected) but Discord does a really decent job at giving you the same, even if it looks a little fancier.