they are prob checking wayback machine for stuff like this
maybe change your favicon so it looks nothing like the fb logo and change your sig and anything that mentions facebook in it. Whos to say they dont know or wont look for forums or other stuff with your name on it.
i googled faceporn.com and this was on the first page.
http://www.scribd.com/doc/39928644/F...cebook-lawsuit
best of luck wit everything.