I hear schizos complain that it really is a ((((joooooossss :^))))) but none of them show their calculations or experimental data to show how is it that it's inaccurate.
I for one think special relativity is solid because I understand how the experiments are performed and understand its arguments empirically but GR is a touchy subject because I haven't done experiments by myself that could help me determine stuff like the orbit of mercury and how it fits GR better.