Please give us a setting to turn this "feature" off.

Or perhaps better: make it easy to choose a default and to hide the others. Perhaps a bit like Google Calendar "show only this" option.

And/ or to ability to re-order them.

I admit, in some ways it is nice to be able to very quickly see them too. I think I'd quite like if it they weren't all displayed, and most of the time I just saw my primary default email address, but I could quickly expand a list of hidden ones to see all the rest.

As it is, it's also too easy to accidentally right-click "mark all as read" - that should at least give a "are you sure?" prompt.