>>6847234short answer they don't play with their toys
long answer: people just got the figures, pose them for like a minute or two and then they left them in a shelf for fuckhow long while yearning the next figure, so they don't give enough time to themselves to familiarize with the toy and figure out a good way to display them.
there's also the factor that people buy stuff from looks so they don't know the source material, ending with the default poses that appear in the figure's box.
not gonna lie, i tend to suffer from those problems sometimes
