The thought process its elusive.

Learn to tie off a bowline. Carabiners have been known to disappear at Carderock and Great Falls. 

Perfect for tripping hikers.

That's a single carabiner at the climbing rope.

That's not redundant, and thin webbing on the rock is what you call suboptimal.

This is called a "Yard Sale", lay everything out and clip it together.

A lot of thought went into this, not good thought, but a lot. Some of the hardware are Quicklinks, not carabiners, so no gate.