I think people should implement their own ideas and systems first, prove it to us, and then preach about why a competing idea/system is wrong. To me, it makes zero sense to tell someone they're wrong, when those people are seeing results.
Anyone can criticize anything. It takes genuine effort to create a new system that works across an industry - if you think you can do better, go for it - I'll cheer you on.
The belief that there can be is a root cause of bad systems like OKRs.
I said it isn't universal and cannot be universal.
"In this scenario that only I know the details of, here is my opinion, and my opinion is correct, which proves OKR is bullshit". You're simply stating your feelings, which nobody can discuss/examine. That isn't an example of anything.