I had an interesting experience recently. I registered as a seller on MotionArray and uploaded 193 video stocks. Later, MotionArray did not accept my items, but accepted items from 1-2 sellers on the site without any problems. Those items were of the same quality as mine. In fact, the items I made were sometimes better, since I have 15 years of animation experience. I wrote this to MotionArray support, and one of their employees canceled my item upload rights. They did not answer my question, they just aggressively tried to remove me from the site. At that time, I realized that the new supporter or moderator of the site is an unprofessional person, I hope this will be an idea for people who want to start MotionArray for the first time :)
Soundkit