He probably should, but then, almost everybody using both node and HN knows who he is.
I don't know why you assume that. Who is he anyways and why do you expect HN+node folks to know who he is?
Amongst other things, Bryan Cantrill is the CTO of Joyent, one of the authors of DTrace, and comments here regularly. If you use node (or DTrace, or ZFS) and read HN, he's pretty hard to miss.
I use Node and Hacker News every day. I have no idea who he is. I'm not some rube, I just don't pay much attention to personalities in tech like that.
Edit: Also, you should probably mention that you work for Joyent.