Rito your demotion system doesn't make sense.

Situation: Get promoted, lose first two games at 0 lp, win one game and go up to around 20ish lp, lose another game and go to 4 lp, lose another game and get demoted. Seriously, what happened to the grace period from being promoted? Is your demotion condition that if you have lost a % of your most recent games and were not just recently promoted when you are at 0 lp that you get demoted? Does winning 1 game destroy the grace period? How does that take into account problems with other players you are playing with just feeding in your games, or acting inappropriately and causing the team to lose?

Granted I can't sit here and just blame everyone else for all my losses, but when I do well and my teammates do not, can't the system identify who on the team is not pulling their weight for instance, by calculating things like kda, champion damage, wards place/killed, objectives taken, etc. Also what about those who die several times in the earlier stages of the game and giving less weight to the deaths of other team members who are killed by opponents fed by their allies?

I dunno, I realize that systems like these are never "perfect", but it is a frustrating experience to get promoted, then get demoted in an extremely short time span without feeling like I had a real chance to climb again.

edit note Thank you for reading just enough to note this was in the "wrong" section of Gameplay and Balance and deleting the post in order to tell me I had to post in "Miscellaneous" while not actually responding to the issue. Customer service fail.