Join Date: Nov 2005
Posts: 12,348
bb is slowly rising to fame, but it comes from the original pokertracker. It was designed for limit hold'em, since NOONE played NL back them and so it reported it's winnings in BB of course.
Then NL became popular, but poker tracker only was designed to speak limit speak, so people just got used to BB or ptbb as we used to call 'em.