You've totally missed the point, which isn't that Neil Gaiman may or may not have done something shady, but that Vox has a long history of relentlessly attacking those who are more successful than him in his chosen fields. Celebrities and public figures face these sort of allegations and issue NDAs on a routine basis, but you don't see Vox obsessively posting about them day after day, or going to the trouble of instructing his minions to make a subreddit and memes devoted to them. Vox's hatred of Gaiman and the others I listed is transparently driven mostly by envy, which he painstakingly backward rationalizes into criticism of their work or personality. His massive ego just can't accept the fact that he isn't as successful as he feels he deserves to be (irony of ironies, Vox is himself the foremost example of the "secret king" Gamma male he continually rails against, whose rage against the world stems from his own insecurities and thwarted ambitions). The dude is a complete and utter clown with zero self awareness, and it remains a mystery to me how anyone can take him seriously at this point.
I'm in the weird position of agreeing with you about Vox's personality but liking and generally agreeing with his ideas. On the one hand, I can't think of anyone more arrogant than Vox Day, and yes, his obsession with gamma males is projection because he's one himself.
On the other hand, a lot of his ideas are good. He's spot on about the importance of ethnic nationalism, for example. It was largely through his writing that I understood that I'm a real American because I'm of mostly British descent and have ancestors who were in the USA before 1776, for example. Understanding his idea that even Germans, Scandinavians, Italians, Poles, and Irishmen and their descendants can never be real Americans like me is crucial in understanding America and its history and, especially current events. Nevertheless, something like over 99% of US citizens, both paper Americans and real ones, believe in magic dirt and the "melting pot" fallacy and can't understand why America is dying: actual Americans are a rapidly dwindling minority.
Then there's understanding that I'm a midwit. That is, my IQ is above average but nothing special, and that's OK. It's helped me understand my abilities and potential and feel satisfied with them and not feel threatened when I encounter people who are more intelligent than me, which is something that happens multiple times a day in the higher-level IT work I do.
His...what does he call it...sexual social hierarchy (or whatever) is helpful too. The "sigma male" category is ridiculous, of course, and it's hilarious that Vox invented a category all for himself so that he could feel superior to actual alpha males. It's so much easier show some humility, admit you're not alpha, and move on. That said, his identifying of the gamma male type is very helpful, both in helping me identity them in real life and in avoiding behaving like one myself.
Then there's "SJWs Always Lie." Great book that anyone red pilled should read. Vox has a real talent for identifying and explaining the nature of types of people and dealing with them, be it gamma males (in spite of the blind spot for his own gamma behavior) or SJWs.
So, I'm grateful for Vox's nonfiction writing (I find his fiction mediocre) but I definitely wouldn't want to meet Vox in real life. I imagine he'd be insufferable due to his gamma behavior and, as you point out, his burning envy of those more successful than him.
