I'll go first: r/kitty. One of the hundred grillion cat subs back on Reddit, the culture in this one was you posted a cat picture, and the only word allowed in the title or in any comments or replies was "Kitty."
Someone is using that subreddit for covert communications, I just know it. Either on the level of "if u/PM_me_your_nostrils posts an orange cat, we attack at dawn!" or there's some steganography going on with the pictures, but that subreddit was too stupid to be as active as it was.
You know how some people believe Paul McCartney is dead and was replaced with a body double? I think that happened to Jontron at some point before the incident.
Shortly before the flex tape video, he announced he was going to appear in a debate with another Youtuber named Destiny. In this debate, he claimed that "Rich blacks commit more crimes than even the poorest of whites" (direct quote, I shit you not), and that Donald Trump had never said anything racist. It was completely out of left field and shocked pretty much everyone.
My theory is kind of a joke, but I seriously have trouble believing that these are the same person. It was so sudden and so random that I want to believe that there is some other explanation as to why it did. Up until this point, Jontron had stayed fairly apolitical. On the very rare occasion he'd share an opinion on Game Grumps, it would be the most milquetoast moderate thing you've ever heard. To jump from that to retweeting actual Nazis for praising him for saying what they believe feels completely insane. It's easier to accept that there is some sort of sussy imposter imitating him than to believe this just happened.
Turning the serious off for a second, I think that if anyone knows the truth, it would have to be Arin. I don't think Danny was involved. He might just be blissfully ignorant.