i am not new to pinterest but i only ever use it to browse through and save "inspo" for arts, design, aesthetics, etc. and i have never used it to post my own photos, that is until a few days ago. i still save photos/art for inspo but i like how the interface makes your photos look more fluid. instagram's square design looks too clinical, and limits the dimensions of photos and videos you could upload, unlike on pinterest where you could have combinations of media in varying sizes, and they fit in a puzzle kind of way, the feed looks much more relaxed and personalized.