As someone who hates Annie and fed one earlier (mostly due to underestimating her level 2 advantage), shes fine.
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Ask yourself this; Why are you in her range when she has stun and/or ulti up?
To be perfectly fair, theres not much you can really do in those situations. If shes smart and freezes lane at her tower, you can't push to reset it because she can zone you pretty easily with her stun, even walking near the wave to CS can result in you losing a good chunk of health, if not your life.
Sort of the same reason old Xerath was annoying, because he couldn't "miss" his stun per-se, even walking up to CS was risky.