WHY DO SOME AUDIOPHILES TRY TO TELL OTHERS WHAT THEY CAN OR CAN’T HEAR IN A SYSTEM?

haha exactly! 

Delusions of grandeur. My system and virtually every system is absolutely unique, how anyone believes they know what I hear with my system in my room requires super powers.

+1, follow what @cleeds wrote,

It's clear to me that some people come here solely to disrupt and ridicule. They're trolls, although some are cleverly disguised. But in general, there is no shortage of people who want to tell others how to run their lives. Both groups are generally best ignored.

We all see the same people jump in and post over and over about how something is not good, and yet they cannot explain having ever tried it before themselves.   

I don’t think it’s my job to know everything possible between your ears and your brain.  It's certainly possible with proper training a neural network could pick out the difference in the number of strands of wire used between power cable X and Y.

However I do think it’s possible to be such a critic you lose the ability to enjoy fine equipment and fine music. I’d rather be some one who can have a great $12 bottle of wine and enjoy it than someone who endlessly critiques a $300 bottle. Worse yet, I’d hate to be someone who endlessly critiques a $5 bottle of wine either.

Along those lines, we seek out demanding speakers to pair them with excessive amplifier power for the sake of... well honestly I do not know.

We chase after a tiny difference and throw hundreds of dollars or more at the slightest difference without concern for whether it’s worth the asking price.

I have spent a great deal of my audiophile life listening for nuance and critiquing and now it’s time for me to listen to the musicians and I’m happy to do that with equipment far less expensive than whatever graces the cover of Stereophile.