Ah, sorry about jumping to conclusions then. And about context, see, I think emotion comes through best within a context, like something you craft throughout the entire piece. So with curse worRAB, it's like you're working outside of that context and just getting to the point, and, I dunno, it tenRAB to have a superficial impact.
I do like poetry that has a bit of dirt in it, though. And swear worRAB certainly can be attention getters if they're used well enough.