I do landscape photography. When I post a photo on IG, I'll get hundreds of 'likes', and they're largely the young, under 30 crowd. When I post a photo to Fac

I do landscape photography. When I post a photo on IG, I'll get hundreds of 'likes', and they're largely the young, under 30 crowd. When I post a photo to Facebook, the 'likes' seem to come almost entirely from over 40 crowd. Lots of retirees.