I was planning to have one of my friends from the community around that website test read the articles for me, though I might also benefit from having a rationalist test read them, if anybody wants to volunteer.

Discussing cognitive science experiments is part of the plan. I actually performed a version of the 2-4-6 experiment on a group of people associated with the website (while dressed as a court jester!(it was during a renaissance fair)) and as predicted only 20% of them got it right. I think knowing that members of their own ingroup are just as susceptible to bias as faceless experimental subjects will help get the point across.