What would that reason be?
See your standing, of all of the players, would be incredible.
Also, seeing how much times you've lost or won is not necesary, why don't you count you'r losses and your wins?
I agree, viewing a users the win/loss ratio can be sufficient. But, most people would not want permanent win/loss ratio as it may cause conflicts between members as whom is the better battler. It can certainly prove that one user is "better" at winning than another, given a win percentage accumulated from about 10,000 battles.
And it is logical that most users may feel uncomfortable showing their records. So another suggestion would be to add an option to reset your ratings and win/loss ratio whenever needed. Having an option to reset your records whenever along with win/loss ratio sounds like an awesome idea to me.
While I will agree with Synre that you can correlate ranking on CRE, but it isn't very reliable in "bragging (or certifying) that you've accomplished a greater deal than another battler." Anyone can get a very substantial CRE rating
just by battling a lot. While win/loss records can portray more accurate statistics. Showing that you've won a great deal of battles and lost only a few and at the same time maintain a high rating. For instance, one battler might have been battling for 4 hours straight and obtained a 1500 CRE. While another battler only battled for 1 hour and obtained the same CRE. The reason the other battler recieved the same CRE in only an hour is because he has won more than he has lost in that period of time. But, since we are only give a CRE of both these battlers, it is impossible for us to tell which battler here has
performed better.