And thats the aim. As I said annie will likely be doing more damage against the enemies in bot lane than than her mid lane would if built right. She's not going to carry late game, but I've gotten my fair share of wrecks late game as annie support and it hurts.
Its a mind game really, how many annie supports do you see? Very few? I've seen 2 in the last 3 weeks of about 40-50 games total now.
How many sonas/zyras/thresh etc have I seen? Plenty. I know their full kit and their damage output. I know its not high, I know most likely if I am equal in health, have mana, and I'm not horrible behind I can lay this person out.
If I see annie support 9 times out of 10 I'm going to mistake her for building ap (if she isn't already) and run, when in fact I may be able to kill her. But if she builds her runes/masteries right I may have walked into a trap. She has alot of burst, lets not forget that. She's annie.
As others have said, her auto attack range I believe is the second longest in the game at 600. Thats longer than most adcs, so perhaps you can build ad runes on her with ad masteries and just harass all lane.
Supports for laning goes as far as being a kill lane, which is what annie is or just basically relieving pressure off your adc so he can farm more securely.
Supports mid-late game go for warding (including early as well in their respective sides) and bringing a shur/mikaels (if needed) and a shard of true ice (if needed). After that particular aura items and maybe an aegis/locket.
At that point she can build appropriately to how she sees fit.
I used to do this in solo queue and I may get torn apart for it, but I ran a sion/pantheon/alistar any of those, any bruiser with hard cc sometimes soft cc bottom lane.
My friend and I ran draven/olaf bottom lane. We hit 7 when they just turned 4. It was horrible for them.
The best support is damage!!
Let the flames of haters begin!