I used to visit AOL chatrooms a lot, and there were quite a few which were run by self-styled experts in their chosen subjects. These guys (or gals) tended to have a close-knit clique around them who looked up to them, and would defend them to the (textual) death. Any passer-by who disagreed with them would find themselves the target of vitriolic attacks, and no amount of logic or calm argument would deflect them from championing their hero or heroine.
So, it seems to me that Ms Kimmer is simply another version of that self-proclaiming expert - a person who has a smattering of knowledge, but an ego that boosts her up to make her seem almost omniscient.
They all self-destruct eventually. Like a house with no foundations, they sink lower and lower until finally vanishing, and Kimkins will be forgotten in a year or so.
One final thought - which group in any society like to keep their real names and pictures secret?