BLOCK. If you Block them, then they are not harmful anymore. You can not see their comments, action, whatsoever.
IGNORE. If you doesn't want to block them. (Yung sinasabing iisnob mo na lang XD)
PREVENT. Don't imitate them. If you do, then you're the same as those sCu|\/| right XD (Wag mo na patulan)