I can't believe it took so long for people to finally realize maxing Janna W is optimal.
Phy finally talks about using W as a max first but I'm just surprised no one before has realized that a Janna can win 90% of trades starting at level 1, either forcing an all in, which can be negated at level 2, or forcing you to lose to AA - > W from a Janna. It's honestly disgusting to play against and makes the enemy ADC life really hard from cs denial, but apparently it's only starting to gain traction in Korea now.
This is also how I managed to get an S+ rank on Janna last season. That shit's op.