[_ck_]

It only affects posts made afterwards, not existing posts but some easy php/mysql code could fix existing posts.

But I could have sworn this was fixed in bbPress 0.9 with the WordPress Integration section built in. It should give the users a WordPress role and display name. Actually, WordPress should create the display name itself if it sees a user name without a display name. I wonder if this is a WP 2.6 issue which should not be used with bbPress 0.9