Never underestimate the placebo effect. It is very real and it is very strong.. even when you know for a fact that it is present. There are tons of stupid things I do all the time that I _know_ make no difference yet I do them to please my ego and to ignore the placebo effect. While I'm doing these things, I am actually aware of the fact that there is no difference to the audio, yet I "hear" a difference which impacts my creativity/mood.. so I ignore it and go with what I feel sounds best.
Ignorance is a choise and I sometimes decide to be ignorant and let the creative juices flow. However I do never try to sell this "better sound" to anybody else. In fact I'm always very uppfront about it being placebo and just say it exactly as it is.. a quirk of mine.
I've noticed that I'm very sensitive to the user interface colours. For instance in Reaper I can "hear" a clear difference between two tracks if they are coloured a different way, yet contain the same audio. My brain _knows_ the audio is exactly the same, yet I sometimes have the need to ignore this fact and just carry on with my feeling of "better" just to keep the flow going.
I also absolutely love ABX tests. At one point I was almost obsessed with them. My findings are that if you get about 80% correct from a test sample of 50 tries you can be almost certain that you are actually hearing a difference. Any smaller percentage or smaller sample size you are most likely in the realm of the placebo effect.
My point is: The placebo effect is completely real and we are affected by it constantly, throughout our day. It can be very stressful if you constantly think about it and try to fight it. Thus you can and probably should knowingly simply embrace it
and carry on, yet don't be ignorant of it being in play. Never ever try to deny it's existence and most importantly never ever try to convince others that what you "hear" is real. It isn't.