[Vi0]

Very few people posting things publicly request people to start a debate about it.

Is your issue more that pg is a public enough figure that he can't not get attention for things he posts? Or is it that the attention he gets is likely to occur in a forum he views regularly and has an attachment to?

Lots of similar thinkpieces get posted on HN every day that people have all sorts of debates about without being invited to do so. And most figures with the wealth and visibility of pg can't really publicly post things without a group somewhere arguing over its content. A downside of having that level of fame I suppose.