Re: Facebook Connect user profile could NOT be deleted.
SOLVED:
actually this helped :
https://buddypress.org/forums/topic.php?id=2602&replies=2#post-14193
so..
there are 2 ways to delete users in the WP-AMIN :
one is for the hole BP and one is for the particular blog…
you should go in wp-admin > admin > users
not like me – wp-admin > users > authors & users 
