Serious idea: Charge something for commenting. Sell “comment packs” with ten or one hundred comments for ten dollars. I’d lean toward ten for a dollar. Because the Kochs have billions to work with, and then to fill up your comment boards with paid shills, they’d have to fund ThinkProgress.
Really, shills with real sounding names must cost more, even if it’s just to maintain multiple fake names across multiple sites. But clearly the Kochs have lots of people on the payroll, just look at the comments these days.