Originally Posted by Punky
What is a buddy list?
You can choose to receive PMs only from those you yourself has defined as buddies. They are added/removed the same place you maintain your "ignore" list, first "User CP", then "Miscellaneous - buddy/ignore list" on the left hand part of the screen.
Those who are open for PMs from everybody (except your ignore list) will see no difference between buddies and regular posters, I believe.