The problem with the comm system is that it doesn't take into account certain factors. If you run with other people, for example, there's less chances to get comms. If you use PF for whatever reason, you won't get any at all.

And sometimes people just don't care. You can be friendly explain and mechanics to new players and just get nothing.

I think it should be less about comms and more about completions, like having all the ex trials and dungeons done.