I deliberately spoiled my ballot paper a few years ago in the first police crime commisioner election in our area. I even went to the trouble of writing why, and the way the lack of any real information what this new role was for perverted the democratic process.
I found out next day that even though it was spoilt, my vote and thousands like it were counted in the turnout figures and being used to justify the whole farce. PS even with what I believe were record levels of spoiling we still had a record low 'turnout'
So no. Vote spoiling does not work - your vote will be willfully misinterpreted to the benefit of whatever the powers that be want.
Someone else on this thread had mentioned a 'None of the above' option - that is definitely what is required. RIP Richard Pryor I'd vote for you!
Biting the hand that feeds IT
