Maybe the solution is to change the title to something like "Derogatory Quote About Graph Theory" and restore the original word scum to the body (but not the title) of the question.  Quid is certainly right that the question as it currently stands makes it look like the OP didn't bother to Google, and I think it's wrong to create that impression.

I am among those who don't understand why this gave offense in the first place, so I might be missing the point entirely, and therefore won't make the edit myself.  But I'm hoping that getting the word out of the title would be enough to make everyone happy.