Oy vey - so much bad science in that article. Correlation does not equal causation, folks.
If you want to cut diet sodas for your health or comfort, go for it. But don't do so out of some belief that you're shooting yourself in the dietary foot by consuming them and that full sugar, other artificial sweeteners, or coffee are all more virtuous and health-sound choices than aspartame. They're *different*, and each has it's own trade offs.
As for me, I've managed to lose about 120 pounds with several daily servings of a variety of artificial sweeteners. I think I win, especially having gone from pre-diabetic to having an a1c of 4.7