Hello Dmitry,
I'd love to suggest full-screen editing feature as only thing that app lacks for me (except of more powerful search may be). It would be nice to have it as it suits the app's simplicity best (I'm sure, you've seen Writeroom, Scrivener and OmmWriter).
I've also recently faced the problem with posts for one day sorting. New posts appear on top of the list for now, but before it was inside out. Any advice?
Thanks,
Pavel