Looks like they plan to push all studios uploading content to Xvideos RED to create an account on Sheer if they want to continue. So Sheer is most likely a replacement for Xvideos RED.
They use a different company for this which is located at the same address like the one operating Xvideos and their retarded support pretends those are different people. LOL.
They are probably trying to separate Xvideos from their paid subscription services to avoid the VISA/MC rules - so they can remove the mandatory ID verification on their free tube and get back all those thieves uploading stolen content.
Now the best part - they prohibit URLs in watermarks on Sheer... Good joke
BTW: Pornhub has just announced a new subscription site for their paid uploads too... surprised it took them that long.