Got a source for either part of that?

* generally considered a large scale fraud,

* perpetrated by (UK's Professor Brian) cox

Most that I know would say that it was disapointingly too big and too general to make specific predictions tied to this specific universe we occupy, although it had early promise.

Brian Cox didn't even make the wikipedia page so its difficult to claim he had any major role in perpertaring it as a large scale fraud.

https://en.wikipedia.org/wiki/String_theory

Found Sabine Hossenfelder's HN account!

I am, of course, joking but she posts this sort of easy and empty clickbait.

Laughing at someone who says “hey an idea that isn’t falsifiable isn’t a good theory and certainly not something that any other ideas or theories should be constructed upon is I think more serious than not.

Yup, her content is not very appealing these days.