As I mentioned in this previous post, I deleted my FriendFeed account. I followed their directions to delete my account, got confirmation of the deletion, and I confirmed that I am not able to log back in.
The problem is that it appears that even after I deleted my account, new entries posted to my Twitter account are still being posted to my Facebook account, using the FriendFeed facebook application.
I had configured my FriendFeed account to import my Twitter feed, and had configured the FriendFeed facebook application to post my FriendFeed entries to Facebook. But, I expected that when I deleted my FriendFeed account, that no more entries would appear in Facebook, especially since my FriendFeed account is supposedly "deleted".
FriendFeed should fix their service so if my account is deleted, they should stop processing any updates that had been associated with that account. Until they fix it, make sure that you remove the FriendFeed Facebook application when you delete your FriendFeed account.