I've heard of them. I have a problem with them, namely that it equates atheism with scientific expertise/feel-good American liberalism and social activisim. Obviously no-one explained to them that correlation is not causation. Or told them about Lysenkoism, it would seem.
It's also something of a hugbox for the worst offenders in the whole Skepchick/rape in an elevator debacle on Watson's "side", though I use that word loosely given how much damage they did to their own credibility.