[Suggestion] Present Champion & Role KDA Expectations to Minimize AFK/DC
There is some truth to the the way summoners understand the value of kills and deaths with respect to the interface shown to them.
It might be of some merit to consider presenting the average and spread of kill, death and assists in an easily consumable fashion so that summoners have some sense of what is normal for their champion & role, and how their performance measures up.
Better comprehension of performance will reduce the amount of rage/depression afk/dc that results from lack of good information.
My suggestion is to display K/D/A in this way: http://s32.postimg.org/gt4f54c01/Kill_Counter.png It could be a mouse-over if screen real-estate is an issue.