@Riot: You are forgetting this is a game

Since season 4 begun, all your balance changes were aimed to make the game more balanced at the highest levels, but the pre-Season 5 changes made the game more annoying to play.

Jungle Changes: You made them so it is hard now. But you made it so hard that the average jungler has to choose between clearing it or ganking, making that either a laner goes behind because you couldn't gank them, or you getting behind because after a not finished gank you got no gold or experience.

Mana Regen: Again, to the average player playing mana champion is more frustating than before. It makes, however, both mana-using mage match-ups a MUCH MORE interesting, but there are too many offenders out there: . Playing again those champions with a mana mage isn't fun, and you feel punished for playing them.

Turret balance: They are much, much weaker. But there are two offenders: Inner-towers and Inhibitor-towers. The first one makes DoT champions useless in siege compositions, while the second ones dont survive a 10 second sliptpush. That is no fun anymore.

Promotions: Althought old, they are really infuriating. Because either you have luck, or you don't. In the series to S3 to S2, after 13 of them, I got an afk or troll in either team in EVERY GAME. Those are 39 games. And there is also the bad-luck strike after upgrading, making a lot of good work go to the trash bin.

Some balance changes: Specially Olafing a champion. I can understand you don't want them to see competitive play again, but making a champion thrash-tier and Very-High Risk Very-Low Reward isn't an option to average players and destroys the fun of the champion.

My thoughts.