Moose requested that the sig button be enabled by default for those who have gone to the trouble to define a signature. I added this request to my bug list, but it isn't at the top.
Perhaps I should post my bugs/enhancements list and let people vote on what bug-fixes/improvements they'd like to see first. I can promise it would influence my decisions, though there are naturally other factors, particularly degree of difficulty. Anyway, any interest there?
--Percy