Against spammer, and plaggia, ok, but to steal potential rewards because one richer than you decided so, on his own, NO THX
Even vicitm's reputation will be impacted, while there is a slight chance that he didn't anything wrong

Long ago, soemone downvoted me, and sucked all my possible reward, to harm another user, but that user was too powerfull for him, so he attacked me ... Really, acceptable for you ? :)

In my case, and in this one, itś plain abuse