For me, I only rarely need to adjust baseline shift settings (usually when I want to adjust the verticality of a trademark symbol relative to body copy.

Unfortunately, Illustrator retains the baseline shift value, so subsequent text has it applied by default, forcing me to reset it. I'd absolutely love it if that setting defaulted back to zero, given the infrequency with which I actually need to use it (for me, it's the exception, not the rule). Generally after my occasional need for a baseline-adjusted character, I'm forced to type in new text, manually reset the baseline shift value to zero, and then delete said text, to ensure subsequent text is set correctly.