Accessibility is still a key priority for us and we've done a lot of work to both test the pages on VoiceOver and add accessibility features. Since there is a pretty broad range of screen readers (each with varying levels of support), we'd welcome suggestions on how to improve things. However, the forum isn't the most productive venue for this. Please create issues for each accessibility issue/recommendation and we'll try to add these as fast as we can.
For example, this bug was closed quickly after being added to the tracker: