Leaving queue should not have a penalty unless you do it ALL THE TIME.
When your first pick picks Teemo (already a bad idea)... then the 2nd pick picks Darius... 3rd pick picks Wukong (top)... and 4th pick picks Sion (top)... Why do you have to lose lp for dodging that? That's ridiculous. There should be no penalty. God forbid its a promo! A system for ranked promotion should be 100% based off of personal performance in game. It makes no sense that you solo queue alone, then because of other people are forced to play an extra two games just because they want to be annoyances and provoke people. I understand the elo system, when we are talking about full 5v5 pre-mades. But you really need to implement something different and more appropriate for the solo queue. My friend was in his DIAMOND 5 promo and got 2 mid picks who both went mid. Its not just the low elo's. Its all of solo queue. I know all that riot gives a shit about is the top .01% but how about facilitating the other 99.9% of your player base by tweeking the REALLY REALLY REALLY inaccurate elo system, and taking out senseless penalties. There is literally NO REASON that you should lose lp or elo for dodging what you KNOW FOR A FACT will be 20-50 minutes of your life lost... actually.. make that 40-100 minutes because you have to play an extra game to make up for the lp you lost.
Okay?