-
Then don't do them. I don't know what else to tell you. Everybody knows by now that RNG is a fickle bitch. If you go into a Nightfall hoping for an exotic you don't already have, 99% of the time you're going to be disappointed. And if you're too busy to really make use of the Radiant Light bonus, the Nightfall is not really worth your time.
-
I shouldn't have to, they should add new content...why is that such an issue for you? No more faction gear from nightfalls and new gear from nightfalls, there isn't anything lost, just more gear to use.