User blog comment:Gundam Legilis/Viewer Discretion/@comment-27121579-20160109025936/@comment-80.192.6.40-20160109153431

Shadow: Fair points. It's their taboo nature really - as you point out, they're used for heightened emotion and agitation, so outside of that context (or if they have no particular value attached to them by the nature of their profanity) deprives them of such purpose. They're used for those circumstances. If they weren't taboo, then they would have no particular value (and thus questionable use). It's sort of a forbidden fruit approach.

Pinker would refer to the context you're using as emphatic swearing, one possible type.Other forms have a purpose such as to insult (which only work if one is aware of the severity of being called that of course).