Kamma isn't different working for monk or householder, good householder. Yet sure, people love victim-blaming. To judge right could be just made for both individual seperate. Neither can be assumed that the one experience discomfort really knowns the reason, nor could it be garanted that assumed 'trolling' is really such. Sick people tend to blame even helping hands, like dogs easy bite even their keeper.
Of what's kusala, what's not, good householder knows, at least literary. Why trying to pain a pointless outwardly judgement? Buddhism doesn't work like that.
Why not seeking direct approach and solve the issue, but instead seek after a small world-war approaching others when kamma starts ripping?
It may of course happen that somebody used to troll gets trolled, or at least feels as if. Remembering a little on own old deeds might help, not only to be able to bear vipaka but also to finally stop doing evil minded things.
If the answer doesn't releases, but even causes anger in addition: well, no way to help one already on the road downwardly.
Good householder knows well the reason of his vipaka, and if he would have practiced correct at any time of his life, instead of developing samadhi based on wrong view, he would have arrived at right view already, would no more have doubts nor would he try to charge others for his own heritage, his past and present deeds. Who would have compassion with someone who used to harm, still harms, Noble Ones, aside of a Noble One? Others might take side in hope for own gains, of course.
Just stop it, and turn to good friends. Confessing, pardon and simply leading a good and virtuous life, having found refuge maybe right here for the first time.
While others might provide happily weapons, my person likes to remind that there isn't much time left and real duty, that of leaving house and stand, still not done. Sure, some believe that there is no life after, but why they then nevertheless seek for heavens and fear hell even here... Stop it! For goid householders own sake, nobody else bears the fruits, here or in next existence. Remember, much sickness is caused by tendency of harming others and trolling around.