Support!
That's one of my favorite perks about Flight Rising, I can get a notification when someone mentions me. If I wouldn't be able to see that, then I would have no clue is someone wanted something because I'm not very active there.
It could be great for semi-active people on CS as well!
Also, subscribing does nothing.
I want to get PM's when a subscribed topic gets replied to, but I don't. What does that even do?
I miss out on adopts I love because of it and it's annoying