Lots of arguments fail the freshness test; they’re fallacious for reasons any undergraduate can point out. These are our focus here for the most part.
Other arguments, however, fail for slightly more sophisticated, but not less pernicious, reasons. These cloak themselves in the sincerity of honest inquiry or grown up skepticism, but in reality they’re just mechanisms for refusing to engage with the claims of the opposition. This chart, found at the Wonkblog (thanks Colin) identifies some common strategies: