String Theory: Are you a believer?

ISAW wrote:

If there is no way to test it it is not science and is just a philosophical construct. It is a bit like theories on other universes that we can never get into or communicate with.

I think I remember reading in a recent Scientific American that according to string theory black holes may be producible in an accelerator (I think they were referring to the large hadron collider) at a certain energy level, while all other theories required much much much higher energies to produce them. If that's the case what would this imply, if true?

Even assuming we can prove they exist what's the point in discussing conditions in them if we can never actually find out what those conditions really are?

Because such discussions are interesting, you never know what you'll be able to do down the road, and who knows what knowledge will be of use when we get there. There is a reason science research is split into the theoretical and the practical.