Most rooms don’t need acoustical treatment.

There are two types of audiophiles ... those who have never tried acoustic treatments and 'think' their system sounds great. And those who have treated their rooms and 'know' their system sounds better than before.

It took me two years to find a house with a good room and if you find one of those acoustical treatment is not needed at all and when you put uneven items in the room it just keeps getting better.

This has to be top tier trolling. 
Voodoo science? The results of adding treatments is easily seen in measurements. 

I placed pillows behind my speakers, at first reflection points, and scattered a few more around in my small home theater room. My soundstage is more present and dynamic, and the center of the soundstage is well represented despite a 52” lcd. 

The challenge now is coming up with a more permanent solution. I’m talking to GIK. 

I’m not sure I accurately described the difference before vs after, but I find myself listening to more music. I’m thankful for some of you keeping the treatment discussion alive. 

Give it a shot, it’s free. 

When you furnish your room, when you put curtains on the windows and decide on cloth furniture instead of leather, when you put up shelves and install rugs or carpet, you are acoustically treating your room whether you know it or not, whether you think you are or not. As has been said over and over, everything matters. If most rooms don’t need acoustic treatments it’s because most rooms (correctly or incorrectly) already are.