I suppose the delete button on the edit page is a 'good' feature, but my own picayune preference is to have a LOT MORE white space between the "save" and "delete" buttons.
I can just picture myself spending a half hour writing and editing a post only to have that Homer Simpson 'Duh-OH!' moment when I mistakenly CLICK THE WRONG BUTTON. AGGGH! Duh-OH!
20+ years as a mainframe dinosaur indicates that this will indeed get changed PDQ after it happens to one of the developers. :)
Other than that piddly complaint, v2.5 seems better so far.