"Practice champions in normals before you play them in ranked"
I fully understand the concept of practicing champions in normal games before you play them in ranked. ranked is where we come to play champions that we know well and advance in ranking
HOWEVER
I've found while learning vayne and riven recently that people will flame you in normals regardless of whether or not you want to learn a champion. People will become frustrated that you didn't play your best champion so you could do really well and carry the game. You're more likely to get flamed and reported rather then having them understand that i want to practice my animation canceling before playing ranked. The worst part is if i try to mention it or talk about it i get responses along the lines of "Your one of those people who says that its just normals so you don't have to try fucking troll".
TLDR: people want to practice champions in normals instead of ranked and then get flamed regardless
food for thought