It was remarkable to me when I switched to unsweetened, unsalted peanut butter that after about 5 days of it tasting bland, it started tasting amazing.

Since then I've been cutting the sugar in every recipe down to 1/3 to 1/4 of what's specified. You just plain don't need it: at least provided you've largely dropped sugar out of your regular diet (so very limited off the shelf food - which now tastes incredibly sweet to me these days).