Discord is basically a great way to connect to your community, play with friends or meet new people. I personally use discord for my own servers and for moderating aswell as some meme servers.
Well in my opinion number one it's pretty much free unless you get the premium I don't even know what it is the premium called number two people have been using it since it came out and I think it was one of the first really game related and it was nice but it wasn't crappy.
Discord for life
The main use of it is for voice chat but people also host servers were other people can chat and then play games.
It’s like ps party chat in a way. Makes everything easier
It's for people that play pc games and so u can use voice call to talk to other people while playing