I almost posted something similar before this thread took off. I wasn't going to comment on the class dynamic, which is clearly what has been giving this thread it's longevity, but I was going to comment on the fact that it does seem the MSC forum isn't as robust as some others.
I went on Oasis of the Seas in 2022 and I felt there were so many new posts on the RC forum that I would have plenty to see even if I had checked CC only hours earlier. On the MSC forum I look every few days and I see a lot of things that don't seem to apply to my upcoming cruise, namely posts that are YC specific. I just skip over them and hope something more relevant shows up.
I'm not sure of the intent of the OP but I did identify with the feeling that the percentage of YC posts far exceeds the percentage of YC cabins.