I'm the "computing Alan Kay" from the ARPA/Parc research community (there's a clarinettist, a judge, a wrestler, etc.) I did create a new account for these replies (I used my old ARPA login name).
It's really cool that you weigh in on discussions on HN. Or I suppose it feels like that to me primarily because I grew up reading your quotes in info text boxes in programming texts. And it's cool to have that person responding to comments.