1. IG stories auto-delete fairly quickly
2. I do not want to have to maintain a constant vigil over dozens of models' IGs
3. These threads are clearly meant to be comprehensive, which is why they are just "Elizabeth Turner" under "Fashion Models," and not like some other forums which are divided by content type, and have thread titles such as "Elizabeth Turner 12 UHQ Guess Photoshoot."
4. Sometimes fans neither have the time nor the tools (as in, they don't know where to look or how to acquire) to get HQ photoshoot images, but IG posts can alert those who do that they exist, and often provides enough clues as to where to find them.