> As a customer, you've given me no value.
Meaning:
> You, being a customer, have given me no value.
This is what I don't understand.
> [From my hypothetical perspective] as a customer, you've given me no value.
Or more concisely:
> [Speaking] as a customer...
> As a customer, you've given me no value.
Meaning:
> [From my hypothetical perspective] as a customer, you've given me no value.
Or more concisely:
> [Speaking] as a customer...