With regards to whether when it finds a legitimate bug, it should be given weight?

With regards to whether a blanket ban has a payoff

Why would the difference matter? A bug report is valid or it isn't.

A lot of bug reports aren’t valid, or handle a case that can’t realistically happen or realistically be handled (eg what do you do if you detect a crash while the prior crash is crashing and the logging pipe is throwing errors)

Sure but this is true regardless of the model. Either it found a bug or it didn't—who cares about the intermediary steps or tools used so long as the reporter can reproduce it?

That’s assuming the reporter reproduced it. I’ve seen so much slop these days. Sometimes people post whole conversations in which the final answer from the AI is that the initial report was impossible to fit to the data after reproducing it, then continues in circles arguing that proves the original reported issue was real and the refuted cause isn’t actually refuted (eg it said there was a bug in function A, in code which never used function A — and that example was with the top tier models just released last month)