He was witch-hunted on the internet by a serial witch-hunter, some "journalists" who lack basic reading comprehension and the lynch mob that ensured. It's naive to believe he resigned voluntarily. He was pressured into it, probably believed the witch-hunters, lynchmobgoers and finger pointers to a certain degree that he indeed is evil, resigned to protect what he created and therefore was nice enough to not shit all over the institutions he created on his way out.
His reputation was set on fire and burned to the ground, he was expelled from his life's work, might even have become homeless as a direct result, and most of the people he considered friends or friendly vanished over night (tho, some remain as you pointed out, but decidedly few) destroying most of his social (support) network.