Actually, I think these are a great idea. Seriously.
If I was single and met a woman, seeing this on her hand would immediately tell me that she's a vindictive, bitter shrew of a woman and save me from wasting time on her.
“Activism is a way for useless people to feel important, even if the consequences of their activism are counterproductive for those they claim to be helping and damaging to the fabric of society as a whole.” - Dr Thomas Sowell