Would it be possible to have the promotional items be limited to the category that you are browsing (i.e. the Stacks sections has stack promotions and the Themes section has theme promotions.)?
I was just browsing the Project File section and thought I took a wrong turn for a moment because I was seeing stacks listed.
I likely wont have that happen again, but I think it likely that newcomers could get tripped up from time to time.