I too have had an increase in wiping. To me, the foods that I eat affect the amount of wiping. I noticed once when I ate only chicken soup, m stools were very well formed. It had a lot of good vegetables in it. I dont know if this affected the odour ( I cant detect it). Maybe our stools aren't absorbing enough water. I'm trying metamucil at the moment for this reason.
I also read that charcoal tablets can draw more water into the stool.
I think that vegetables are easily digested and this may have something to do with it.