Do you like working for free? Do you like people making unreasonable demands?
How would you like spending the weekend like the log4j people trying to solve a Prio 0 bug?
It's entirely your prerogative to say no.
I’ve always found people are reasonably happy when I send them big reports — though I always either send a fix or, if I can’t figure it out on my own, a test program that demonstrates the problem.
The last time was for some random library I was writing a python wrapper for and the author seemed way too happy to be getting a bug report for the code he based his master’s thesis on. Pretty amusing to be perfectly honest.
Some people still idolized the hell out of me
I don't like doing free tech support for entitled mean people on GitHub, which is what you're really asking about, but I'm perfectly happy to throw code over the fence for the general public to use if they don't bother me about it.
What happens if the log4j developers just... don't fix the bug? Other people who rely on the library fork it, development continues with more funding, the world keeps turning, and maybe a few tens of millions of dollars of additional economic damage are inflicted in a diffuse fashion across the global tech industry.