Dishonesty is easy to show - and a link avalanche is rhetorically a good way to make it seem like you've shown it, at least to people who don't follow the links. People like me, who are curious and do, will end up resentful of the waste of time.
I have no opinion on whether Krugman is dishonest or not, but if know you can't make a case, please don't respond with a link avalanche. If you can: quote a statement, reference it, quote the evidence that it is factually incorrect, reference it. Argument made.
Sorry for being snarky, but this technique irritates me when I fall for it.