You know who really needs help?
Miss Fortune. Good god, how has she been left like this for so long? She literally offers nothing that another adc does not currently do much, much better. Caitlyn and Varus have better poke with longer range, Graves Lucian and Sivir all offer better burst, Sivir Lucian Ezreal and Vayne offer better mobility in combat, and Vayne Kogmaw Ashe and Jinx offer much, much better sustained damage.
I guess the biggest question I have to ask is, what was Miss Fortune's kit SUPPOSED to do? Like what is it actually designed for? Winning lane? Any burst ADC can totally destroy her in lane with ease, and Cait is a MUCH better choice if you only want to win lane, as she scales better in the late game too, thanks to her range and headshot. Is she supposed to be the aoe face-wrecking adc? Graves Jinx and Sivir are much better choices for that. The only lanes an MF is likely to win, are against weaker laning adcs who should lose lane anyway.
The only thing I can think of that MF really does, is offer some ad-scaling magic damage on her impure shots, stacking up as fights go on. Even still, this isn't enough to allow her to avoid a LW if she wants any respectable damage output. If you want an ADC with magic damage, Corki is probably still a better choice.
Her passive is worthless in combat. It's even disabled by a single minion attack, removing even its usefulness in lane. Fine, maybe early game that's necessary for balance. But maybe it could scale as you level up, becoming immune to disable from minions, and then late game being permanent? Just an idea.
Worst of all I think is her Ultimate. What is the optimal use for this thing? Open with it in lane and your opponent just walks away and waits for stacks to fall off. Try to counterinitiate a teamfight with it and you lose a TON of much better single target damage that will help your team a lot more than applying impure stacks. The only good use for it seems to be as an execute on enemies who have gotten just out of your auto range, and even then, the damage is pretty bad. This ability is pitiful compared to what other adcs have to offer. The base damage isn't great, and the scaling is nonexistent if you are playing MF as an adc. It is supremely underwhelming for how difficult it is to utilize, considering that it locks you in place for the duration.
I just want to know what niche this character was/is supposed to fill, because it doesn't seem like there is a single good reason to ever choose this champion.
Like it or not Riot does it. There is obviously so many better champions to pick why would you pick any of these champions unless built around a specific synergy.
all have far better pick rates than
Having her bugs not fixed for a year and nobody in Riot giving a shit about them. Once a half a year they claim they care, but nothing was done about them, until somebody overshot a nerf so hard it removed an ability from her hit.