(note- mild drivel follows -- skip if easily bored) is that things keep getting fixed. or improved.
exempli gratia: I've been using sendmail since it was the "new thing" to replace uucp mail (Taylor UUCP was once a vast innovation over ATT). And it's always been a bear. Now tho' I find there's almost always less complexity and my recent experiences with sendmail have been no exception to this. Good Job Dhu