Can users download audio files they themselves have created?
I think this is a question of volunteer labour and attribution. One might choose to donate their contribution under a Universal Public Domain Release (CC0 1.0) on Common Voice, but they have the moral right over that contribution. They should, at least, be allowed to download only their contribution, separated from contributions by others. Also, a user downloading their own contribution (audio files with transcription text) does not violate any kind of privacy.
Would love to hear what others think but would also request Mozilla staff to include this feature.