Seems to be completely possible. The only time I've been on and interacting with people was when we tested this. We all reported each other to see if it's automated or not and it seems, without a doubt, automated after a certain amount of reports. There were six suspended, all for varying times based on what we reported each other for. The "voice comms" report hasn't been tested yet, but.
I get that certain stuff shouldn't happen on Xbox and that's why this system exists, but this is exploitable as hell.