In dubtap's diagram, they're suggesting using asymmetrical chainstays to move the hub right so that the rim is centred between the hub flanges. Fatbikes with offset-135 rear ends do this so that the chain doesn't rub the 3.5"+ tyre in the easier gears.
Using offset rims to move the tip of the spoke triangle to the left lets you achieve a more symmetrical build without wonky frames.
In dubtap's diagram, they're suggesting using asymmetrical chainstays to move the hub right so that the rim is centred between the hub flanges. Fatbikes with offset-135 rear ends do this so that the chain doesn't rub the 3.5"+ tyre in the easier gears.
Using offset rims to move the tip of the spoke triangle to the left lets you achieve a more symmetrical build without wonky frames.