People complain about OP stuff, but let me just say that the game IS frustrating, NOT broken
Getting one shot by a stealth champion is frustrating.
Not being able to move is frustrating.
Not being able to run away from a champion who melts everything with Devourer Guinsoo's is frustrating.
Dying in general is frustrating.
Tanks doing tons of damage is frustrating.
Dying quickly as a tank is frustrating.
Having a lot of AP itemization being weaker than AD itemization is frustrating for AP champion players (but not anyone else).
Having a minute long death timer is frustrating.
Someone getting away with 5 hp when ignited is frustrating.
All of these things, and many, many more are incredibly frustrating. They are not necessarily broken (except Devourer Guinsoo's. the only counterplay is to deny stacks. after that, you're screwed). But that doesn't mean Riot shouldn't do something to address these. They should balance to make things fair in higher levels of play, and balance to make things feel fair in lower levels. I don't care if Master Yi is broken in lower levels, as long as he doesn't feel broken. If someone like Gangplank is broken in higher levels, then nerf him for those levels, but make sure he stays fun to play as and against in lower levels. Lower levels is about fun, higher levels is about competition. Riot seems only to be balancing around competition, which isn't why the majority of players are here. Riot does some great things, and some not so great things. I would love to see more of the great things Riot does and I really hope they clean up some of the less than great areas of the game, even if that takes a while. I love this game, and I want it to thrive, but it gets really frustrating at times and I think that can be improved.
Let's celebrate the duality of fun and competition, and hope that Riot continues to make progress towards making the game better with things like the mage update, champion reworks, new lore, hextech crafting, and the new client. Maybe that means less new champions, but I would be fine with that and I know a lot of other people would be too.
Sorry for rant, just wanted to get this off of my chest.