Dark Energy May Be Incompatible with String Theory

Has string theory made any testable predictions yet? They’ve had 20-30 years and it seems with every generation of particle accelerator they simply discard the current version of the theory and make the strings/membranes/whatever smaller and/or occupy yet more dimensions to justify them to still not be testable.

Is it really worth articles saying “string theory may not be compatible with X”, when it could just be “unproven/unprovable hypothesis doesn’t work with new data”

string theory hasn't bore any fruit and is likely wrong. I will even go out on a limb and say dark energy is likely not actually energy but an unexplained gravitational phenomena.