But, if that were true, and there was nothing unique about what others had learned from other games, then why don't you understand and recognize how the dozen or so specific examples you asked for work? You asked for specific examples of how things learned in other systems could improve a DND game. You were given about a dozen concrete examples. Yet, you didn't understand how a single one of them worked.
If you could learn all of these things from other sources, and there is zero value to be gained from learning other systems, then why don't you understand how these things work?
I've never said you can't learn things from other games. Learning those things is not limited to playing other games and doing so does not make you a superior gamer.
Amazing how y'all have to twist my words on this.