Duurrrr, but that might cost them 2 pence to get £100.
"We like, in it for the moneyz yo and like, it's not my fault I'm greedy, dur exchange should spend like, a gazillion $ to like, sort their stuff. So long as like, they don't have like, >0.0% exchange fee.
Me want everyfink, but like, don't want like, to do anyfink 4 it or like, pay for it."

Always makes me cry when folks want perfect service but at the same time seek out the cheapest exchange.
Herp n Derp all day long!

EDIT:
Of course, it probably won't be long until some cool folks get some code written up so that wallets are able to check the status of an exchange prior to sending, automate sending a small amount, connect to an API to ensure that deposit arrived and was confirmed, then send an additional amount and so on (with ability to increase transactions each time depending on user preferences).
There's SO much that's still to be done, we're SUPER early adopters and the sooner people realise this the better. There are constantly problems, it's how exchanges/wallets etc deal with the problems that matters the most to me.