When I read the post you were replying to, I had to check the username to see it was not Tom7.

Aside: HN's deliberate design decision to de-emphasize post authorship really bugs me. I frequently end up reading long conversations, only to realize by the end that I recognize one or more of the people in the thread. It can sometimes change the internal voicing in which I read the posts. It obfuscates the ability for a user to build their own, internal sense of other users' reputation. Yet there is a karma points system in place to create a sense of reputation. So the end result is a clear statement from HN that the only user reputation they want you to care about is the one that they assign through their system.