I agree Bilby. The Brazilians moaned about it and said it led to bad results at their elections, but I suspect that was linked to other reasons (dry election days for one!).
It doesn’t mean you are forced to vote for someone, you can always spoil your ballot paper (maybe there should be a none of the above option). It is our duty as citizens to vote IMVHO. Our responsibility to hold the elected politicos to account.
I would also say that if there are more spoiled ballot papers than votes for candidates, the election should be re-run.