I also call BS on this.
I do not care for accuracy, I do not want to hear ear bleeding sound. I don't care for that. I want that distortion of pleasure. I want a device that adds flavour to the music.
What you going to say now??
Whatever you will say. I wrote my answer on top.
Ear bleeding sounds? I only have that when the recording is badly produced or there is something else broken in my system , the DAC is the wrong place to even try to “fix” this.
Btw if you buy a painting do you bring out the crayons to “improve it” to your liking ?
IMHO no product can have set of pleasing distortion that makes all recordings sound better , you end up with one optimal system for each record.
It’s a more sensible approach to have a hi fidelity system ( transparent and accurate)
And either accept that some recordings sounds garbage or apply some EQ or tone controls in those instances.
The truly good recordings will shine in such a system.