While the argument about 2.47 KDA was stupid, the initial post in response to mine which started the while thing was along the lines of "I do good with Darius in my ranked games I average like 14 kills"
Somewhere in there someone tired to point out to the poor bronze that having a bunch of kills doesn't mean you did well, especially if you on average die 8+ times a game and have less assists than deaths. That mean you are playing for kills and not to win.
This entire legitimate point was overshadowed by an argument about a KDA number.
Also, to the people saying just because you're in bronze doesn't mean you don't understand the game - while I don't completely disagree, I have to say if you really understood the game, you wouldn't be in bronze. Just from my brief stint in B1 this season I saw so many godawful mistakes being made that anyone with a decent amount of game knowledge and mediocre mechanics should blast through it easily.
What I'm saying is not that you can't have a valid opinion because of your rank, but knowing that you lack the skill to get higher than Bronze makes me much more skeptical of your opinion.
But back the point I wanted to make - the actual point some people were trying to make is that saying "I do good with this champion, look how many kills I get per game!" Doesn't really mean anything. Hell, if you usually get fed but don't usually win, it says to me you're worse than someone who doesn't usually get fed.
The real problem is the lower ELO mentality of focusing on KDA and sometimes CS to rate performance, and not statistics like damage dealt, damage taken, time spent dead, wards placed, dragons secured, kill participation (k+a / team total kills), gold earned, gold given to enemy team (should be a tracked stat but can still be estimated), towers pushed, locations/timing of persons deaths compared to teammates deaths (you can figure out if someone is over extending constantly by using the full match history), and a lot of other metrics you can use to assess someone's performance.
If that Darius player had instead said "look at my match history, I have highest gold on my team, highest kill participation, highest damage taken as the main frontline, but still substantially more damage dealt than taken" it would be a much more convincing argument. But not only does he not meet those metrics, indicating a mediocre performance at best, but the first metric he cites is not even KDA or KD, but just number of kills. That to me is what truly shows a lack of understanding of the game.