Let them all be hurt by me doing nothing. Everyone is hurt the same way, and therefore equality will be maintained. No one is favored, and I possibly can't be blamed for their misfortunes. On the other hand the world works on someone's misfortunes is someone else's fortunes. I had a similar essay question for my ethics class
Hmmm...report this member for digging up old post and satisfy 50 other members hatred to digging up posts, or let him go and been complained for not reporting him...
Whatever is for the best. If I don't help and they all get hurt then might as well give up on the 1 out of 10 people that will suffer.