If you consider good strategies to be irrational than you mean something different with rational than what the term usually refers to on LW.
A used car salesperson convincing themselves that what they're selling isn't a piece of crud is an example of where irrationality is a "good" (effective) strategy. I don't think that's what we are trying to encourage here. That's why I say instrumental truthiness - the truth part is important too.
I also maintain that focus on "winning" is psychologically in conflict with truth seeking. Politics = mind killer is best example.
If it's worth saying, but not worth its own post (even in Discussion), then it goes here.
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