No joke (and I don't know about Walden Two).

The norm on this forum is to leave out any form of address from nearly all comments and replies to people's comments, so your addressing Robin as "Prof. Hanson" stuck out glaringly.

In the context of this discussion, it seemed as if you'd interpreted Robin's request as a "status transaction" and decided to respond in kind. The honorific foregrounds Robin's academic credentials and downplays the (tacitly assumed) norm that this blog is a conversation among peers, where evidence and argument are sought more than assurances of authority.

Humility, as I understand it from the Twelve Virtues pamphlet, isn't about comparing yourself to others. It is about comparing yourself to who you will become.