I recommend going over to that other site and look for the group page for your specific sailing, search for 'Carnival Horizon September 27, 2025'...or similar wording. Lots of info can be found there and its fun, you can chat with folks that will be on your sailing. Usually meet & greets are planned, bar crawl, etc.
(Although it is a bit far out yet, if you don't find anything, a page might not have been started yet.)