I've recently deleted the game, my win rate is 62.75% from 64% in around 400 games when I've played over 7000, basically meaning I'm on a very steady incline towards 60% which I'm not prepared to let happen lol.
I can already imagine peoples opinions on this, I do enjoy playing the game for the sake of playing, not only to get a high win rate but for me the completely 1 sided games and high frequency of brain dead players in tier 6 and above have made the game a chore to play now.
So I'm taking a break from the game until I can see a more calculated matchmaker system and for a little balance to be brought into the game. I still love this game but I can't play it knowing I'm inevitably gonna lose my win rate that I've been working on for a few years now and I'm gonna just get frustrated in more matches than not.
So yeah, I completely agree with you, I've taken somewhat extreme measures in preserving my sanity which I don't recommend to anyone (I just keep getting annoyed at the game) but i have no doubt ill be back playing once I've had a break.