does the ban system even ban?

hi was wondering if the ban system works? i reported "qiyanna" you can see my match history, tresh and cassio sucked her di_ck 2 btw (maby pre) she started to flame me after she failed a gank when she knows i dont have any cc before lvl 6 and in champ select the adc (cassio) took my main lmao (i main cassio) how does she execpt me to play good without my main, well enouge with that she called me brain damage and dog shit (TF blade got banned for calling turks dog shit) but why is qiyanna not banned? i want her to get a perma ban.
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