We're just not used to it - its the new feature which helps new people to FG post before registering but if they don't complete their registration within 7 days it gets deleted.
We can see which ones are spam so please keep flagging them as spam using the 'report content' options. That way, any of the Mods or Admins here can remove it rather than having to see a reply post like this - although the point about Diddums is correct 😄😂