Cylinder Head Porting and Power Production

I enjoy reading threads like this and learning. I'll add something: there's a reason most at home people cannot produce a ported head that will produce much more horsepower than the ootb head. The lack of experience/knowledge as well as lacking the proper equipment to tell if your changes are going in the right direction is the hindrance. It seems like most people's thought is to "hog it out" because they think the engine will benefit from this. It's simply not true, how many of you guys (RAMM, PRH, YR, etc.) have seen this and tried to explain it doesn't work like that? I think that the average car guy can do some things to the head to help it, but I don't think it will be leaps and bounds better. I'll say this also, I've read many of you all on this thread as well as several others that offer your advice and expertise free of charge, and that is one of the many things that makes this forum so great.