We are only human, there don’t have to anything more to it than your brain caught a pattern. That pattern, started as annoyance, then you see more and more of it.
It turns into flaming hate and rage over ‘nothing’.
You had a bad experience, that turned the next experience worse (even if it was milder), reinforcing your notion till the point where you are now
I also got such ‘player ticks’ in my head. Example when the dispell affix spawns, I get angry - as I can’t do anything about them. Making the whole experience misserable, even though; I was never needed to do them - they are already handled perfectly.
Irrational feelings about an affix is just natural. Then I talk to my friends, they are friends, so they reinforce the notion of the ‘affix being stupid’ for that reason (the non-problem, I see as a problem at the time).
Started with me wiping once because I couldn’t do anything about it. From then on, that ‘hopelessness’ and ‘frustration’ just keeps snowballing in magnitude every time.