There's not a single word of admittance of any problems Yahoo mail has other than mentioning one missing feature. If I were an employee, I'd basically be thinking that my feedback wouldn't matter because they haven't made any effort to prove that they know what common problems are and therefore can actively work on a solution.

Granted, that's how I feel about most "give us feedback" forms. I'd feel a lot better if they listed a few things that actually came out of the suggestions, or things that were popular from that suggestion form that were changed using some feedback (frequently devs actually already know whats wrong and feedback can just be for a little prioritization, but there's nothing lost in giving the userbase a pat on the back).