Ideas of questionable quality

[Frank_Stein]

The thing to note is that anything said into the radio directly (outside of microphones being actually on, which is not the case for typical radio communication) is the person speaking in whisper-volume, which is not covered by the text display.

Edit: removed some words for clarity

But it's not though. You can still hear people fine when they are talking into their headset radios, it just only displays what they say in the normal chat rather than also displaying text above them.