With the whole forced 50% winrate is extremely cheap. Forcing us to streak with either wins or losses comes across as very artificial. If you want to keep it, might I recommend you try to hide it a bit better?
And yeah, I get that you guys think that "If you're good enough you should carry your whole team to victory," and I would buy that as an excuse if this game wasn't so centered around the rest of your team too. This is League of Legends, everyone should be on roughly equal footing.
It's a team game. Not a game where you tie a chain to your leg and drag 4 lower mmr players that you unfairly matched us with to play decently.