Grow up
Here's my two pennies worth:
I go to the casino to make money and that's the long and the short of it. It is a rather cumbersome proposition to negotiate in the first place: concentration, discipline, disguise, etc. Then there's the actual environment: the usually hostile casino, the loud and drunken crowd, the horrendous music, the slot machines drilling holes in my eardrums, the meaningless encounters and empty tittle tattle, and so on and so forth. I have to endure all that in order to eventually arrive at a faintly advantageous position over the casino which also only pans out in the long run.
I'm not there to prove anything to anyone. I don't want the casino to know I can beat its game any more than I care to rub in the other players' face that I am better than them in the game of blackjack. Big f*ing deal at the end of the day! A bit of humility will go along way with both the players and the casino.
I am split in two: one part of me is at any given point computing the best available play. And the other is acting out this play in the real world. Because it is in the real world that I am playing, not in my imaginary universe where there are establishments who invite people to extract profit 1-3% at a time whilst providing a convivial atmosphere made up only of like-minded individuals of my choice.
So, it is as much an artistry to act out the playing of this game in the real world as it is a feat to memorise 50 indices and be able to count up and down. Anyone as self-righteous to exhibit contempt for those (who, in many cases around here were also us in our beginnings) who believe in luck, spirits, fate etc in the game of blackjack and as self-absorbed to feel like they have something to prove to others and as self-destructive to not understand that it is part of the job to blend in and to separate the play from the act - anyone like so is simply not up to the task...
The point is not to get annoyed but not show it and then come home and sorrow over your unpleasant experience on the internet (AH! but those ploppies!). The point is to not get annoyed in the first place. Grow up and get on with it!