Actually BB/100 is big bet not big blind. Big bet is a limit term which is equal to 2x the big blind. So if you are playing NL100 the big bet is $2. BB/100 is basically an indication of your rate of winning (or losing) at poker.
Stats that are important are stuff like VP$IP (basically how often somebody enters a pot), pfr% (how wide a person's preflop raising range is), af (aggression factor...the ratio of bets/raises to calls), steal attempt% (how often the person attempts to steal blinds from LP) etc etc, but im sure it is all in that thread.