^^^^^ A thousand times.
It's also a pain in the ass to try to RP with people talking in your ears, but you feel left out if you leave. A huge no, from me. No.
And, for those of us who cannot always be ON said mumble due to RL (I dont like being on VOIP when my husband is home, because it cuts him off from conversation with me and is rude to him), it is just another way of being left out.