As of September 2015 cxserver is only used by Wikimedia servers running Wikipedia sites.
It is conceivable to allow other users to access it, with reasonable limitations.
Various technical blockers for this were already resolved, but we probably still need to a few things:
- Define potential users. There definitely are some: translatewiki, maybe Wikispore, and maybe more sites.
- Understand the legal and business requirements.
- Anything more?..