I'm not a native speaker so my vocabulary is pretty limited, but I don't remember coming across a word that would help me express that feeling.
"This piece of software is as useful as wings on Shamu"
"This piece of software makes me want to skewer needles up my thumbs for a relaxing break."
etc. There is value in shock. The problem with profanity is that it it only shocks whoever is not used to reading it (and in public writing it's hard to tell who is and who is not).
Whales like to jump, surely Shamu would rather like to have wings, and the second is a great deal more distressing to me than just a silly little word could possibly be. I don't think either of these are an improvement upon the first at all.
Judging by this entire tizzy HN has worked itself into, I'd say profanity doesn't run the risk of running out of "shock potential" anytime soon.
I honestly believe this is an instance of generally rational people becoming offended for a reason they don't quite understand, and inventing a theory to explain the data.
It adds nothing.