I play an archer and I have noticed that I am usually unable to fire a bow at an enemy when I am standing on a ledge overlooking their position unless the angle of my attack is very shallow. This makes absolutely no sense unless it is deliberately included to limit the effectiveness of ranged attacks.

Switch to first person ...

I have encountered this annoying "feature" as well. I guess the world geometry isn't quite as sharp as it is drawn. ^^ not a matter of first or third person.

yeah, i have often had arrows stick into the invisible ether around building corners and such. really annoying.

Collision boxes are enormous, even for a Bethesda game.