Yeah, I've really been astonished by people who, for example, draw ripoff fanart, then say "DO NOT STEAL MY CHARACTER UNDER PENALTY OF HELL ON EARTH."
I remember telling someone who drew Spirit fanart that they were yelling at other people for drawing Spirit fanart. Her response? "I don't draw in the Spirit style anymore!"
"Really? Because your eyebrow horses suggest otherwise."
It gets back to most ignorance is willful. And ignorance tends to do more harm than willful evil.