Now that the corn has cooled enough to touch, slice the kernels off of the cob. An easy way to do this is to place a small bowl or mug upside-down inside of a larger bowl. Balance the ear of corn vertically on the small bowl, then slice the kernels off with a sharp knife. The kernels will fall right into the larger bowl without making a mess on your counter. Add the corn into the mixing bowl with the dressing.
Stir to combine all of the salad ingredients. Give it a taste and adjust to your preferences: add more salt as needed, more lime juice for acidity, and more onion if you like extra pungency.
The salad can be served while still slightly warm, or it can be refrigerated for about 2 hours and served chilled. It can be enjoyed as a side salad or as a dip for corn tortilla chips!