Autofill

ok, so, im playing only ranked games and 1/5 games supp saying "fck rito i didnt pick supp, i go troll bb" he is picking yasuo,kata,darius whatever and he go bot lane as supp but guess what stealing my farm,my kills.. And he wont get banned or something.. Pls rito why all supps trolling,regreed play supp and drop ping us in b5 because of their troll? [zombie-brand-facepalm]