Are people really worried about this? The only reason this is in the TOS is so they have the right to keep running their data mining algorithms even after you delete your account, in case they find a new way to leverage your data. It's not like they're going to start selling a poetry anthology of your stuff or something.
It would be an interesting bit of performance art for someone to delete their facebook account and then file a DMCA takedown notice if they could show that their profile pic was still available within facebook.