Anytime there is a poster that challenges the the deeply held belief systems on this forum certain forum members are deeply offended emotionally and then silence the poster with a ban. How is this forum scientific if there is no objective discussions because certain people are too emotionally immature to consider what they believe may be wrong?
I think posters that come on hear believing something are asked to provide proof or to do properly conducted blind test in the name of science.
Claiming an amp or DAC 'sounds' a certain way based on what one clearly and unmistakably heard is not science unless tested in a controlled way with the proper controls. This is what is questioned and ends up in heated debates.
People generally stop posting or leave. In rare cases, where some persist and are showing multiple signs of trolling (alike) behavior... yes they may get a ban after being warned. This happens on all forums that are based on (strong) belief.
Personally I like to discuss these matters with people and try to get them to test in different ways than they do. Experience learns they won't/don't because these ways of testing go against their beliefs so don't see any value in it.
No point in arguing with those types... always ends unsatisfactory for both 'sides'.