Can you provide a working example of such? I assume you mean a CoSMOS table.
Unfortunately I am rather horrible at CoSMOS, but basically yes. If someone has utilized CoSMOS to build a trainer they use regularly for a particular game that is no longer supported by the staff, they can post their table to a location within Aurora that anyone can access and pull from as needed.
I would also add that if someone is using CoSMOS for cheating in a multiplayer game then there should be a feature built into the repository that will automatically prevent/delete the information before it's made public so as to not sully the reputation of CH as only utilizing trainers in single player not as a means of gaining an unfair advantage in online play against others.