That thread raises a better question. Why doesn't gmaxwell have that badge? We should award it to the people that have superior knowledge first; that is, if you want to remain fair.
At first, I tried suggesting one people only to OP. With that thread, well yes, maybe I could suggest
gmaxwell added to OP's list too (but I didn't know much about him).
Its just personal opinion to add
-ck to that list, I have read a few stories about him. And I felt
-ck has a good enough contribution.
Yeah, it's fair enough to awarded people with superior knowledge first. But I can't measure it, at all. This is would be a list, so everyone free to suggest people that would be on the list, as long as people that suggested is capable enough related to criteria itself.