ROFL9.
Avoid using provocative names. Preempt any problems by having your child avoid screen names or nicknames (often referred to as gamertags) that could encourage griefer behavior.
10.
Don't give out personal information. Griefers (or anyone else) can use real names, phone numbers, and home or e-mail addresses, to further harass your child or cause other problems.
If only that actually worked...1.
Ignore them. If your child doesn't react to them, most griefers will eventually get bored and go away.
How did you see that oneXaero said: