Getting friend request from fake accounts

Okay so I keep getting friend request from someone who keeps creating a new account and the account has no games played or anything and it's always a new name. When it first started I accepted it and then they chated me sending a web address and what not. I didn't click and I erased them immediately but I keep randomly getting new friend request from different fake accounts. It's starting to bug me now, should I be worried?

On another note....MORDE FOR LIFE BABY!