Well I'm glad you've never had to deal with it, but having someone run into a room and yell at me for healing myself or others is rather frustrating. Or have someone threaten to shoot arrest you when you're "micspamming" even though it's a sound from an object and literally not me. It gets annoying. If there was even some way to turn it down just so it can't be heard across the map that would be nice.
When healing someone today a person I was in TS with was outside flying a tie, and they said they could hear me using the med pack from there.
It's just a tad excessive