[bringtheaction]

Facebook will definitely get this site taken down quickly. There is something called the Trademark Clearinghouse and registrars work together with them.

http://www.trademark-clearinghouse.com/

IANAL but whatever trademark equivalent of fair use exists if any I don’t think OP site falls under it even.

I mean, the site is a valid criticism and it’s clever and I applaud them but no I don’t think it will last a whole lot more than some few hours more at tops.

[dmitrygr]

I thought parodies were allowed

[kelnos]

I doubt this would be considered a parody, but there might be grounds for defense based on the idea that it's criticism. The domain name they picked is problematic, though, since it could make it seem like they're affiliated with Facebook. Adding a big disclaimer to the top to point out they're not might be a good idea.