I told you what I was using - a 15" MBP - not a white macbook. With the 15" you can see FA from the side compared to a matte screen.
The 'oily' appearance that you think I'm exaggerating in not the result of a 'buildup of cleaning fluid residue' (do you think I'm a moron?) its due to the diffraction of light from having an extra transmissive surface between the screen and your eyes. In all cases I'm talking about matte in comparison to glossy. The matte has a slight visible granular texture - obviously -since it's not reflective.
Huh? There is no 'oily' appearance on *my* 15", and there is no "extra transmissive surface" on a glassy screen period. It is a glass plate. Not some magic active thingie. It does not do anything. And it does not diffract. If you want to see diffraction in action, get a matte, which by its very nature of having a textured surface does have diffraction.
As far as seeing things from the side: by the time I can't see what is on the screen anymore, I can't see the front of the screen anymore. I don't know how that fits your FA, but I doubt it does.