making anew acct for good mmr is ntg,real skills are those frm low mmr and rise up to high mmr.kda means ntg if u dunno teamwork and teamplay to win.
ive seen games of one sided pawnage but lose 1 war and let the feeding team comeback and win the game,does kda help in such situation?no :/
like kaizer said,if u can reach till5-6k mmr..theres a huge difference of playstyle and skill lv,they might feed but they can win the game

i think if u have the skill,u cna reach whichever mmr u are,even if open new acct and reach high mmr,if u dun hv the skill,ull still go back down :/
thats my tot