Some mmd creators have videos and gifs on twitter, but why wont their sharing them on this site, can someone tell me a reason for that. I reckon, some might just dont want to, but is that really the case for all of them?
On Twitter, Mmd creator publish some video and other content like gif, picture to show their work displayed mainly on Fantia (Jp) or/and Patreon.
These content are mostly for people that give cash to the creator.
Some other content are just some preview for their futur creation published on Iwara.
Sometime, they put their Twitter content on Iwara with keyword like [Twitter] or they put their creation into private and not displayed on Iwara website (Unlisted video) and can only be found if you follow the user and send mp to him or with their journal entry.
I hope my answer is enough.