If someone is being a griefer, just /ignore them and forget about them. If someone is being slanderous about your friends, saying things you know aren’t true, tell them you won’t stand for it before /ignore-ing them.
If they come back to cause you trouble later on FOR ignoring them, it’s best to tell others, and ask the griefer to stop before /ignoring them again,
All in all: If someone is being a general “BLUH BLUH HUGE JERK” just /ignore them and Forget about them.
This concludes this Public Safety Announcement.