cashmonster

Heads up: if you do this to unwitting friends, that’s gross. A lot of technically-minded optimizers don’t realize that.

(If you don’t care, feel free to ignore. That’s grosser though).

Lagging indicator of what specifically? (I agree I could imagine many relevant measures it lags, just wondering what you have in mind).

The article is clearly about political and legislative anti-trans machinations though, not TERFs at dinner parties or whatever. In that context it’s the right that is the issue.

This is only tangentially relevant: what should I search for to understand whether “everything” is survivorship bias and whether or not causality “actually exists”?

They are paying even more to manage cash but don’t have a separate fee for it. Why should credit card users subsidize that?

(Personally I think it’s fine to charge any which way you want as long as your terms are clear. But I think this answer makes clear it’s not so obvious as you suggest?)