@CandyDumDub
Low probability though. They were just online and interacted with it. Its better than no content at all.
If there's any trouble, client requests another three. At random the server may check to see if those previous 3 are really unavailable, randomly dismissing a user for repeated false reporting.
The instance then provides people who interacted with it and who are online.
This can happen seamlessly because content can be fetched that is yet to come into view.