Why Poppy is "Bad in Lane"
I've seen it far too many times, the popular consensus is "X Champion has a hard laning phase." Folks take this to mean "I can just do what ever I want in lane so I'm just going to walk up to Poppy and duel her!"
Poppy is not weak for lacking of dueling power or even trading (against melee opponents that is). She's weak because she has no wave clear, no sustain, and her one gap closer has a nasty habit of putting her in the middle of the enemy minion lines. You don't just walk into lane and try and all in Poppy. Her passive and her W make her a potent duelist in a vacuum. And if you engage in repeated trades with her that let her hit back she will kill you around level 4-5, especially if she gets a wall stun off.
If you want to shut down Poppy you either A. Take a ranged champ and safely harass her down, or take a melee champion with superior wave clear or sustain (Cho'goth is a bitch for Poppy). You whittle her down till you can zone her or safely all in her. You don't try to 1v1 duel her at full health, you don't let her land Q's on you, and most importantly you DON'T DIVE HER.
So please would people stop bitching when I kill them in lane, its your own god damn fault.