As they say in programming, "feature, not a bug." DialNorm, like its open-source equivalent ReplayGain, is a really useful tool - think of it as volume control adjustment metadata embedded in a file. When it works properly it's great, because it means you don't have to ride your volume control when you're playing various things as they all play at roughly the same volume (or at least within the ballpark where it doesn't unexpectedly damage your speakers or scare you into soiling your shorts) but as detailed in that thread, it seems like the Tidal DialNorm has an extra -10dB on top of what is really necessary. I think even the most compressed (loudest) stereo music I have is maybe DR6, and even on that the volume reduction is "only" 8 or 9db at most, so 14 to 20dB is going way too far in the opposite direction.