At internet pages/games, there are many things you can do to protect yourself from bullying. Play smart and you can keep safe. When someone posts mean things in your page, they may be trying to trigger an unpleasant interaction. You cannot control this, but you can control how you handle it. The best way to fight back is to not fight back! 

When someone posts something horrible on your page, make it seem AS IF it were completely beneath your notice. In other words, do nothing that would make the person think it bothered you.

First report the hurtful post. Internet sites is committed to dealing with bullies. Give them time to handle it. 

Then block the user and delete the post. Nobody needs to see something negative in your guestbook. This helps you to move on and forget it.

Do not reply to the post, even if you delete it. Replying sends a message to the bully’s mail/massage. You do not want to give the bully a direct link back to your page.

By not showing any visible interest in what the person did, you rob her of any satisfaction. People say hurtful things to get a reaction, so don't react.

Don't visit the page of the person, because they can see that. Report, block and move on. There are millions of nice people at the internet. Be kind to others and you will make friends.