Is facebook being attacked/used by scammers/spammers?

[captaingoldilocks]

one of my friends apparently sent a wallpost to almost every single one of her friends on facebook, all 450 of them! This happened between 3am and 5am

every single post said that the person's profilepicture / default image is being featured on/ is all over (somethingsomething).com

now there is no way that u can sent THAT many wallposts THAT fast, trust me, i just had a birthday and it took me like forever, like two days to reply to like 50 wallposts, theres now way this was really her either

this is strange because every one of these sites has lots of questions about it all over this yahoo answers thing

warenik.com
wacktag.com
wareien.com
warieun.com
wareient.com

and many more
and it looks like a huge scam or virus or something

can anybody explain this crazy phenomenon?