From what I read, it just got re-branded, not discontinued.

> I could chargeback my credit card but I imagine I'd also be permanently banned from Amazon - so instead I accept they've just stolen $1000 from me with no recourse...

To some this could imply they wanted to continue doing business with Amazon, so accepted the theft. Not losing access is, in a way, continuing to do business. Not sure if that's what they meant, but I can see it being interpreted as such.

Maybe not continue to do business with them but rather not lose access to their past purchases tied to their Amazon account.

Is there a different repo for nuTensor than here: https://github.com/geekprojects/nuTensor? That one says it was archived in 2021. Or are you just saying that nuTensor is less buggy than uMatrix?