One request, that I also made a couple years back, and would still love:
Right now, if you have a URL in your "copy" memory (clipboard), you can autofill it into a link tag. But, as Kung-Log used to have, I'd love to be able to autofill ANY text you have on the clipboard, in your own custom tag. So I could copy a Person's name, for example, and when I triggered a custom tag, it automatically pasted the name into the appropriate spot. Only feature I truly missed when switching to MarsEdit.
If I have a MT-based blog selected when I create a new posting window, it sets the formatting and comments options correctly. But If I am in something like a livejournal blog when i create the posting window, and then use the 'weblog' pulldown to switch to the MT-based blog, the 'comments' and 'formatting' options are both set to 'none'. And I'll often forget to check, and it gets posted improperly.