Or maybe they just like to see poop blow up.
Yup, we are assuming some are indeed motivated by , "Ripping the wings off flies" or "Zapping ants with a magnifying glass". If that is there sole motivation for vulching then score won't matter to them and they will continue to vulch, no problem, whatever "flutters your putter". However, If they
also care about score they will have to make a decision which motivation is more important to them and behave accordingly.