The other forum has been shown to be full of crap on the most part when it comes to aerodynamics. If you can find a member there to explain themselves you'll make me happy. As of now people like to read diagrams and evaluate them without a single ounce of knowledge.
Most people who claim the high pressure area are looking at an old diagram from Mazda and they go off on high pressure areas and how it will create a vortex and push air back in but I don't see how that makes sense. an elite group of members there are knowledgeable but the rest earned their google search doctorates and are more than happy to talk without prior knowledge.