If I ever get "fuck you" money, I am going to entertain myself by renting billboard space around courtrooms urging jurors to Google "jury nullification". I figure there would probably be some entertaining fallout of some sort.
I'm not sure a lot of more libertarian types who advocate for jury-nullification are fully aware that the reason it was suppressed was that it was for decades a mechanism to basically let white guys kills black guys consequence-free.
Jury nullification is a tool, it is not itself racist, though those who have other reasons to oppose it of course paint it as such. With "fuck you" money, much of that sort of slander loses its teeth.
Do it right and it is plainly free speech; if I were to write/publish a book instead of design/rent billboards it would be very unambiguously legal. The entertainment comes in the form of seeing how they would try to stop me.