From my limited understanding:

SSC is SlateStarCodex. Run by a center-left dude who posted overly long treatises about random topics, frequently intersecting with politics. He often acknowledged certain realities about how the left vehemently attacks differences of opinion.

I remember one blog post he made where he outlined and acknowledged the truth of "if an organization is not explicitly right-wing, it will eventually be taken over and become left-wing".