Hmm, I guess people that follow most of the discussions here might be overestimating how much "community lore" others are aware of (or they may mistake "opinions shared by a few posters" for "community lore").

For prior discussions of this see here:

We are one step closer to the glorious time when a thread titled "Most rational choice of footwear" will appear.

or here:

This might be the most blatant misuse of "rational" in a post title I've ever seen.

Now that's a challenge ...

• Rational snorkeling
• Rational hash brownie preparation¹
• Rational weasel appreciation
• Rational captchaloguing
• Rational cache flushing
• Rational cash flashing
• Rational rasher rationing

Most people seem to have liked the suggestion to use "optimal" instead.