Kernel developers care a great deal about security, only not of the circus variety. CVE numbers and stuff do not make systems more secure, less bugs do.
And for what I can tell, people that say reasonable things do get listened to. Those just whoring for attention do tend to get ignored, though.
That language about "security people" is part of the problem. You're a contributor, or you're not. If you're soo cool that you need to distinguish yourself from the rest of the pack, maybe you should consider a career as a designer instead. The LKML will not give you the kind of reward you expect.