Thats absolutely not what they asked for, no one was able to reproduce the issue, so they asked for clearer instructions on how to reproduce the issue and were met with hostility. It's not the job of OSS developers to debug someone else's scripts just to then start debugging the actual issue. This is the absolute bare minimum of any bug report, if you think there's a bug but no one else can observe it, in the first instance you have to assume it's something to do with their setup, until shown otherwise. The addition of not just wrong, but completely misleading AI summaries just makes the job of an OSS dev harder, they now have to start debugging the bug report itself to try to figure out whats parts are even facts at all (hint, most of the AI generated content was completely wrong, but sounded plausible).

Personally, the developers of both the LLVM and Mesa projects were far kinder and patient than I would have been, most OSS developers aren't just not paid to work on these projects, but are usually paid to work on other things. Taking up their time with this nonsense is very insulting to them, and the attitude that they owe the author anything at all is, as stated in the LLVM ticket, exactly what pushes many developers out of OSS development.