Forgive me, but what is a discord server? I am not a young man. What would it offer that is not available on Cathinfo?
Discord is a social media platform that, from my knowledge, is more focused on voice chatting (it was originally made for gamers) than on communicating through written posts. That being said, communicating through written posts is possible, but it is less geared towards that. Many kinds of bots can be included in a server in order to facilitate different things and provide certain functions.
For example, there is a translation bot. However, that one and some of the others require a premium account in order to install them on a server.
It could also serve as a means to help more young people discover the Faith.