alt Hacker NewsYour way is good because it answers my question first. I've been wanting to do a weird thing X and had to first spend half an hour convincing people that yes, I really do know what I'm doing, so they'd give me the one-liner answer I came for.
Ultimately, it should be on me to choose whether I want to risk doing X or whether I want to take up your offer to explain Y, not the "as a favor to you, I'm not going to tell you how" way you described.
If, as you admit, X was a “weird thing,” what’s wrong with taking the time to persuade your peers that it’s worth pursuing? That’s how you build consensus on a team and construct a decision record to help future teammates and other stakeholders understand it.