In the place where you actually go to cancel your SE ID it doesn't actually say "Your POL ID will be ***", more in all is I find it absolutely retarded that it requires you to have information that doesn't exist. Deleting that SE account should remove all SE Account ID's from the POL ID's.
What I also find annoying is that I registered a couple RL friends to my ID, if anyone of them wanted to stop entering that password anytime or give their account out they can't.
