I think of myself as a sub-supertaster. No to grapefruit and coffee (unless the coffee flavor is very mild as in ice cream). Yes to kale. No to alcohol, except in small quantities. Green tea is more tolerable than black. I seem to like olives less than a lot of people, but the problem is with bitterness more than saltiness. I don't seem to like salt as much as a lot of people do. I like hot peppers a lot.

In general, my tolerance for bitter flavors has increased with time.