Afaik, the discussion boards for individual games are not moderated by Valve staff (outside of their own titles and the general discussions not tied to any specific game), but by the developer of the game. And it pretty much is ignored by everyone outside of a few indie devs that either just believe in transparency and use the boards themselves, or because they have huge egos and act like little tyrants being the worst kind of Reddit/Discord mod. The only in-between is the automated systems that work off reports and filters.