It seems as though this guy thinks that if a mod does not result in loud noises/flames coming out from under the hood, it is doing no harm.
I guess this philosophy works sort of if you drive 1 tire in the grave 300 dollar beaters. Nothing wrong with that as I have owned a few myself.
[rimshot]Then i got a real job.[/rimshot]
I am still having some trouble understanding exactly what it is that he is doing by restricting the MAF. I could see how this added throttle means that for a given amount of power, you have to open the real throttle a little further and that this changes the ECM's take on what's going on. Whether or not this helps or hurts anything, I haven't a clue.
As for running with no air filter, well that is a colossally stupid thing to do. I don't care how clean the roads are, sooner or later your engine is gonna get a bad case of indigestion.