In Finland, we call this taste the taste of "salmiakki" or "salmiak salt" in English. It's a popular taste in gummy-like candies, but it's an acquired taste. Most people who taste it for the first time as adults, hate it.
I find it funny that in British English we would call such a thing a "sweet" even though it's not actually very sweet (which is why I like it). Sweet is roughly equivalent to candy in American English, but with a notable exception: chocolate is not considered a sweet but falls instead into the broader category of confectionery.
But this is the stuff I was talking about, thanks.
It's also the "salt" in salted licorice.
>but it's an acquired taste
Yes, because it's objectively unpleasant (if it tasted good there would naturally be no need to acquire a taste for it). Of course, that's not to say it's pointless to add it- provided it's done properly you can add a salty flavor to places it can't normally be (chocolate covered black licorice being one of those places)- but it's also a taste that imposes a relatively small n where (enjoyment gained from eating n+1 pieces) < (enjoyment gained from eating n pieces) compared to candy that's actually designed to taste good.
Who gets to decide what is "objectively unpleasant"?