Op: don't get me wrong, most of my fills have gotten 7-8 comments. But I check each post on flat view a couple of times a day, and I've noticed more fills that have less comments. Really it's only been two or three days, but it's been noticeable, and I feel bad for the authors because in my experience 80% of comments happen in the first day or so (I've done a couple dozen fills, so I'm just going off my own experience.)