In my opinion Rocket should keep side chat on beginner servers. I started two days ago and I had some trouble with starting up, no idea what to do, where to go, controls, etc. The side channel helped me with this though, since some people would help me out, and this is how I could get started with the game. Now, two days later, I like it that I don't have a side channel anymore. Sure, if I would be on a beginner server I would like to help new players, and they would like the help too I assume, but on servers with a higher 'difficulty' I like to just have the direct channel, because that feels more realistic.