Hpricot in particular was under heavy assault. I'll be the first to say that maybe it wasn't always the most performant solution, but for a long time it was the only good solution (and I tried a few). So when people are ripping your libraries left and right, forgetting to pay a little bit of respect to how big an impact he had on the community, then yeah...I could see how he'd feel the need for a self-imposed exile.
Why (not his real name!) became famous for his work's weirdness. And his "enemies" disliked how capricious and weird his work was, not the sort of thing to build a Real Serious Business on. and he fled from the public eye into self-imposed exile when people started piercing his intentional veil of anonymity.
Like X only betterer is the ghetto of the technically talented but uncreative.