

You didnt attack any of his actual credentials, though. You just said that he should be dismissed because he wrote for a particular newspaper and the award he was given by the Swiss government was not one of the awards given by the Swiss government funded by the gift of a 19th century arms merchant.
If you want to rebut my statement that Krugman “has a pretty good track record”, please do so! But you didn’t, and haven’t, and instead asserted your own biases as fact.
Which is obviously your right to do but, again, is a really weird response to a “who is this guy” post.

A mere casual endorsement is not an appeal to authority. If you don’t like the guy that’s fine, but it’s not a logical fallacy to, for example, describe a late night comedian as “a kinda funny guy.”. (A logical fallacy would require that someone assume Krugman is RIGHT because of his record, not that he’s merely worth reading )
How is dismissing someone because of where they worked NOT an ad hominem attack?
How is splitting hairs over which awards given by the swedish government are and aren’t “nobel prizes” NOT a distinction without a difference?