Consistency
If you are going to insist on making people use this new email GUI, could you at least make it consistent? I have two email addresses with Yahoo, and the GUIs are not consistent from one to the other. One has these "All, Primary,.." etc. headings and one does not. One let's you check boxes and delete, mark read, etc. across several emails and one does not. It's super frustrating that you make navigating the GUI such a pain **********. Yahoo's only saving grace is that Gmail is such an abomination. I know you are not going to do anything, because you never have in the past. But if you are going to ask for feedback, I am going to give it to you. It's frustrating having to deal with this new GUI(s) just so some team at Yahoo can justify why they have a job. You had a perfectly good GUI that was great for years... and you screwed it up. Thanks.