Well, I've noticed that the "number of moves" shown for each game listed on a player's profile is one ply longer than the actual game. For example, here we see that the two reversi games between Hrqls and Nomad were 20 and 18 moves, while they really were 19 and 18. Whenever black is the last to move, a profile shows the game at an incorrect length. I think it's been this way since BrainKing 2.0.