ARCADOR'S PROFILE

Very good article!

As the author said, lack of consistency will break the immersion, which is one of the ultimate goals of the game. Nowadays there are even some commercial games which do a bad job of consistency. This usually shouts "un-professionalism" and gives generally bad impression.

Basically a lot of other areas of life have some sort of a Standard which is implied by law or similar order. This helps consistency on many levels. For example - the elevators, the stairs high and wideness, the roundabouts, the bridges and so on.