I agree, it doesn't even track on all of the servers, only the community ones. Nobody cares about the stats (I would sincerely hope), and would love to see them go. K/D ratio will always remain on your character page, for your own information, which is plenty, and resets on retirement.
As long as the common understanding is that the online statistics are just for shits and giggles and don't mean a thing, they don't really hurt anyone either. It was really bad when you could see everybody's alts, based on CD keys on there.
For example though, and sorry to throw any certain individuals into the spotlight:
One of NA's best longbowmen only comes out with a 1.0377 KDR (with a 21 killstreak!?) While our melee dudes sport 2.0 - 5.0 KDRs. Just know the people you play with, and try to recognize what they contribute. I think with the stats gone, people would do better not to refer to those for inflated expectations of people.
EDIT***
I'm thick... you meant the Tab scoreboard... really? That's a problem?