That might have been my mention but I don't especially remember. But yeah, I use the light weight spackle for nail holes and it does take stain better than wood filler. Of course, I always test it on a scrap piece first.
I also use caulk and a putty knife to fill nail holes and such, on painted trim and other painted surfaces. Since caulk is basically really thick paint, it doesn't leave 'flat' spots when going over with satin or semigloss paint.