Yeah I'm in the minority with that lol. I like taking my time and working out strategies to take down any given area. With co-op it's just run and gun... I don't really see the fun in that. I love to take my time with it and look everywhere. Explore the entire map to try to find hidden chests or whatever.
Joshi, I haven't heard of that. I never use the skins so I don't think it would affect me. I sell all of those I get.