People can still click your name and view your account name#number. They can also view mutual servers and friends. I don't necessarily want people in two communities to know or care that I am the same person.

I'm by default a private person, I feel uneasy sharing my preferences with people (even basic things like music that I like) and I don't like these broadcasted social features. The first thing I did when installing Discord was turning off the feature that says what game I am playing.