[Parody]

Let's see...I like the idea of not showing the ellipsis, but Rob's got a point about showing something where the empty box is to show where to double-click for otherwise empty controls. (I'm used to empty text boxes being a different color, but that doesn't improve things.) There are plenty of other places you can double-click to activate Edit mode, though, and you can double-click in empty space to activate editing. (The I bar is a good indicator.)

The best suggestion is probably to allow a Tags snippet without a comment field and not abbreviate Tags in that type of snippet. (The tag box may become more than one line long.)

You could hide the ellipsis in Player view, since they can't edit it anyway. It wouldn't help with the Tag abbreviations, though.

FWIW, I click the Edit button most of the time. :)