Carlos,
When somebody invests a great deal of time and effort to evaluate something, whether it's audio gear or something entirely different, and expresses their opinion, it's fine to disagree with that opinion. But when you call someone sanctimonious for expressing their opinion, that implies a moral component which seems totally misplaced in the context of your criticism of someone's personal preferences. That's a bridge too far and is neither appropriate or welcome on what has always been and will hopefully remain, a gentlemen's forum. C'mon man, lighten up.
As far as a DHT filament bias linestage, I have no idea what that is, but am curious as to why there seem to be no commercially available devices for sale with this technology as one would think more than one of today's leading designers or manufacturers would be offering them for sale by now if was the cat's meow. Why do you think that is not the case?
Marty