Funny, thats the same background as yourself - now the occurrence of those two similar profiles and comments seems a little more contrived than what was previously suggested.
I appreciate that you and Sam's other friends want to show support but you're doing your friend a disservice by just saying "good job" on HN. These kinds of comments without substance typically get down-voted quite severely. People are likely to think that HN is getting manipulated and spammed when all of the comments are like that.
(I haven't down-voted any of you.)
I was very tempted as well.