This isn't necessarily a bug, just a missing feature. You know how the progressive/streaming option that I make on a video is "saved" and applies to any future videos I watch? I thought the volume level that I set on a video would be saved in the same way. If I remember correctly, that's how it was on the old site. I just hate that I have to always bring down the volume to the level I want on every video I watch.
Apologies if this issue has been brought up before.