Sadly, that stuff backfires. The researcher will publish your response along with some snarky remarks how you are refusing to fix a "critical issue", and next time you are looking for a job and the HR googles up your name, it pops up, and -poof-, we'll call your later.
I used to work on a kernel debugging tool and had a particularly annoying security researcher bug me about a signed/unsigned integer check that could result in a target kernel panic with a malformed debug packet. Like you couldn't do the same by just writing random stuff at random addresses, since you are literally debugging the kernel with full memory access. Sad.