I guess I'm not being clear. I don't care about the word "theory". The point is string theory makes no predictions. It's not just inaccessible energies which make it untestable, but the fact that, as a framework, string theory is compatible with a huge range of possible universes.

Eh, again you're just saying "it's not real because..." whether or not you attach the word theory. It is a space with lots of possible parameters being explored and is not one set of parameters with predictions because all of the sets that have been explored so far are either broken or don't represent reality. That in itself does not mean it doesn't have merit. It's simply incomplete, but given its history it's fair to doubt that it ever will close the loop and have a final form that models our reality.