The two main issues

• Runes Reforged
• Damage creep

Those are the reasons why i can't bring myself to play the game. I believe thats also apply to many others players who have been playing the game for years.

The reason why the new rune system is so hated isn't the fact that players dislike changes and keep attatch to old and well-know things; this new system is literrally a downgrade from the previous. The number of combinations and the capacibility for customization is nowhere near the old runes and masteries. It's so streamlined that it barely allows any uniquiness and individualism. Half of the roaster, if not more, picks Triumph.