Facebook login was the quickest and easiest way to claim your profile in order to update or delete it. Facebook recently started blocking people from updating their Profile Engine profiles in this way. This is of course a huge inconvenience to Faceook users who now often have to manually claim their profileengine profiles. We have taken Facebook to court in the hope that we can force them to make it easier for you to update your profile. Facebook also refuse to update or delete your profile engine profile automatically to reflect changes made on Facebook (although they are contractually obliged to provide such updates).
Unfortunately the current situation if you delete your Facebook profile or make it private Facebook will not tell us, so you need to delete your profile engine profile separately if you want to delete both.
We believe Facebook are doing this because they are now building their own search tools (which appear to be an inferior copy of features Profile Engine has provided since 2007).
We think Facebook want the data on Profile Engine to get out of date because they want a complete monopoly over social network search. If you would like to be able to easily control your public profile on Profile Engine by using a Facebook login then you should complain to Facebook about this.
We are currently taking legal action against Facebook because of their disregard of your right to easily log in and control what data you make public. Hopefully we will be able to force them to give you back an easier way to update or delete your Profile Engine profile. Meanwhile you can still do it by one of the methods described in the Profile Engine help pages.