@Ed I didn't mean to be rude or anything.
was just pointing out something which I think most of the people would agree with
I can wish birthday to someone in a new topic and not mean it, or I can pour my heart out in just a single message.
I never wished anyone if he didn't mean anything to me.
It's natural that we try to look for the most feasible option (and creating a new topic isn't the best one)
You can try a poll and ask the members or just wait out and see the drop in birthday posts
Don't take this negatively. Peace