How was I to know it was cap sensitive?
Because he used quotation marks.
You need a space between "COLLISION" and "2"
Not necessarily. Any string that starts with "COLLISION" works according to Badspot. I haven't tested it myself. "COLLISION 1", "COLLISION1973", and "COLLISION really cool box" should all be valid names.
A collision box doesn't have to be a box...
Yes it does. It is called a collision box for a reason and it most certainly does have to be a cuboid object.
you could literately duplicate the shape upon itself and call it collision and it would still work.
No it would not.