The problem is that the ELO gain/loss negatively affects high ELO players. I lost more than 2 ELO in one game against someone low ranked due to a random wrist DM. To gain it back, I had to win AT LEAST 5 games. Imagine Diamond ranked players if they lost against ELO Hell due to a random dm. I'm not sure how much ELO a Diamond ranked player would lose against ELO Hell rank, but it would take them multiple wins just to gain it back.

I wanted to suggest that victories against opponents of the same tier should give the players the most points towards leveling up, whereas defeating players who are different ranks should decrease the reward earned substantially for each rank distant the player is.

Let me show a few examples instead; Not fully thought of, but just an example.

Equal Tier Point Calculations
Going against players of the same tier
- Gold 2 winning against Gold 2 : +1.9 ELO
- Gold 2 losing against Gold 2: -1.7 ELO




+1 / -1 Tier Point Calculations
Going against players + 1 tier away from you
- Gold 2 winning against Gold 1 : +1.2 ELO
- Gold 2 losing against Gold 1: -0.85 ELO



Going against players - 1 tier away from you
- Gold 2 winning against Gold 3 : +1.1 ELO
- Gold 2 losing against Gold 3: -1.2 ELO



+2 / -2 Tier Point Calculations
Going against players +2 tiers away from you
- Gold 2 winning against Platinum 3 : +0.55 ELO
- Gold 2 losing against Platinum 3: -0.35 ELO



Going against players -2 tiers away from you
- Gold 2 winning against Silver 1 : +0.4 ELO
- Gold 2 losing against Silver 1: -0.6 ELO


+3 and above / -3 and below Tier Point Calculations
Going against players +3 tiers away from you
- Gold 2 winning against Platinum 2 : +0.08 ELO
- Gold 2 losing against Platinum 2: -0.04 ELO



Going against players -3 tiers away from you
- Gold 2 winning against Silver 2 : +0.05 ELO
- Gold 2 losing against Silver 2: -0.09 ELO



Let me update the first post real quick