>>/3797/
And he has rarely played Jinx on his own account (last time 3 days ago, before that over a week later).
KDA isn't everything, but anonce had double digit kills in almost every second game, just compare the CS anonce normally gets in a game, look at summoner spells (anonce almost always goes Heal + Flash, Bonbi Ignite/Smite + Flash, or Ghost + Heal in her bot games)...
If you are so sure that it's not Bonbi playing, maybe they gave the login to somebody else to level up her account, but it's definitely not anonce.