Those 8 constantly groan about having to sit their butts in the chair and get the words down. There's a common mentality of, "I hate writing, but I love having written."
But those 8 members have landed several major deals, had movie rights sold, hundreds and thousands of copies sold, etc. And perhaps more importantly, they've gotten letters saying that their work changed people's lives for the better.
So although I personally fall into the "I love writing in all its stages" category, I have no problem with other writers talking about how much they hate it. Those people create some of the best work I've ever had the pleasure of reading. If it takes some moaning and groaning to make it happen, then so be it.
That being said--I will reserve my right to tease them about their moaning and annoy them with my undying enthusiasm. :)