The tribunal system doesn't work.
Over the past 3 seasons that I have been playing league, I have noticed some of the most horrible attitudes and trolls. I love league as a game, I have a lot of fun on the VERY few games that you have a good team. I don't mean good as player skill, I mean people want to have fun, and in doing so they are nice and work together. At the start of last season I was placed in B3 and even sunk to B5. I made an effort to put in numerous hours into becoming a better player mechanically and having a good mindset. Through that mentality I ended the season at they highest I have ever been G2. This season placements once again brought me to Bronze this time only B2, but only in a couple of months I am sitting at the top of G1. The players however have not changed.
A recent example is my promos into plat. Over the 4 games In my promos 2 were lost from intentional feeders. One was a Nidalee jungle who was being counterjungled in the early game and gave up a death in her jungle. This put her on tilt and she refused to farm, as multiple (including myself) teammates told her to just farm, she insisted on ganking and diving enemy turrets to intentionally feed the enemy, even in chat saying "WOOO" and "JUST FOR YOU GUYS". This is completely unacceptable. Another example is a quinn who gave up 13 deaths in a 21 minute game. 5 of which she spent afk in platform. Saying it was just a bad game, and this is over anyway doesnt give any right to afk or even die 13 times. To make the same mistakes of fighting 1v3 or 4 when you are behind is not a bad game.
The only time I see anything done by tribunal is when somebody really REALLY aggressively flames in chat, then they get a chat ban and I end up with them in the next game. This is not right. Riot does absolutely nothing to remove these players, and what is even worse is players don't care enough to even report. The enemy team is always "she isn't on my team, so idc" or "gg ez u guys suck". The community is what is making people lose interest in league and its a shame that riot wont do anything about it.