Oh, got to love the diversity of people.
We're just so triggered by so very different things.
In general, I don't mind the idea of paying for staying in an area that has Superchargers, if that area would naturally be a pay area anyway. I can see it being almost mandatory in some urban settings where free Supercharger slots would otherwise be ICEd immediately... Especially I don't mind paying if the price is well known beforehand and I can plan for the price of the stay (e.g. based on time, no surprises).
Still, I can see the predatory pricing concern. And I can see the counter argument that Tesla did promise free Supercharging. These are legitimate concerns that are expressed in this thread, though I'm not sure how high I'd rate them. Personally, I probably wouldn't be too concerned about them. I'd be OK with there being a price if the Supercharger is clearly inside a non-free (non-free for everyone) parking lot.
(I absolutely loathe the idle charges with minimal grace, though. Not the monetary but the punitive effect of it. I'd be much happier paying twice the price by the minute for staying at a Supercharger for every minute there, than taking a punitive hit if I miscalculate a very unpredictable charge length (charger condition, stall sharing etc.) or Tesla app once again fails to do its thing.
For me it isn't about the money, it is about the idea that I get slapped for something I can't realistically avoid. I think all such things in life should come with sufficient grace and policies in place that allow the reasonable, average person to avoid punishment with reasonable care. A 5 minute grace on an unpredictable (could alter 30-60 minutes) charge end is not reasonable and many reasonable, average people with reasonable care will get punished by it....)
Yes, humans are different!