As someone who mentors sometimes when I have time, if there is a sprout/new player and they did pretty well I would rather the comm go to the sprout/new player than myself; positive reinforcement if they played quite well for being new etc, so that might be their reasoning? ...But if someone is just purposefully not giving any comms to mentors, even if they did good, solely for the reason that they happen to be a mentor then that seems quite petty.
