The entire ranked progression system needs to be reworked.
TL:DR a win is never as rewarding as a loss is detrimental.
I really have nothing to offer except my experience. Over the past two months I've gone from being in promos for silver 3, to bronze 2 now as of today. Its been a long, depressing and extremely confusing experience. I even quit this account for a while to play a smurf because of how depressing my losing streaks were on my main account (this one). At this point I'll probably be returning to my smurf where I feel its much more balanced and I'm playing where I belong. I just find it hard to believe that I've some how "become less good than I was" and need to constantly be demoted down to hilarious tiers through unfair lp loss/gains. Two months ago I was in silver gaining and losing almost equally about 15 lp. Now, I'm in bronze and I lose 25lp but only gain 12. I literally need to win 10 games in a row to get out of a tier, but 5 will demote me. This should never be the case. How can anyone argue that this makes the game fair. Everyone should be gaining/losing equal amounts of lp forever. You should also be matched with players who are in your tier, and nothing else. Only bronze should be able to que with bronze, only sivler with silver ex. I feel that the only reason riot doesn't do this is because you'd have horrendous que times past gold tier. I'll make a quick list of things I think should happen to this game
k/d/a should mean something in determining your mmr (in the current system that I disagree with at least) lp gains/losses should be forever equal (20) promos shouldn't exist at all, anywhere. All games should matter, not just a select occasional few. 10 champion bans per game The ONLY penalty for dodging should be a que delay that increases for each dodge you commit in a day. (if they're going to make a game where the lobby is 50% of the determination on whether you're going to win, you shouldn't be penalized for being strategic) remake should be allowed at any point 5 mins after a team mate has gone afk. Solo/duo should not exist. Instead, there should be 100% SOLO, NO PREMADES OF ANY KIND and FLEX for all others besides 5 person premades. Every season EVERYONE should be 100% set back to BRONZE 5 with NO EXTREME LP GAINS to 'boost' them back to where they 'belong'. Once you've achieved a certain tier, your border should never go away and remain on your account forever so you don't have to play ranked anymore to maintain it if you don't want too.