That seems to be the impression that HN readers are getting, but I've reviewed it a few times and I don't see anywhere that he has stated that he dislikes or does not enjoy programming.
To address your edit, I think it's purely inference to conclude that he either likes or does not like programming itself.
He states that he does it because the money is good, and because he can't do anything else.
He can't believe there are people who program on the weekends, for fun.
He can't be bothered to learn anything new, or to even hear about concepts he doesn't understand.
He posts all the above on a public (until recently) blog, where his boss and all his coworkers can read it. What more do you need? If he has any interest in programming, he's doing a good job of covering it up with his endless complaints.
To address your edit, I think it's purely inference to conclude that he either likes or does not like programming itself.