Birthday wishes are weird, especially with PDA and RSD. If I GET them, I feel obliged to thank people individually, which I rarely do, and then I feel guilty; that’s the PDA. If I DON’T GET them, I feel ignored and abandoned; that’s the RSD.
But they’re silly, really. Why should I expect anyone else to keep track of my birthday? I don’t keep track of hardly any of yours. (I think I know five other people’s birthdays with automatic certainty.)
It would be far easier for the person whose birthday it is to comment to the people who were important to them, like, “Hey, thanks for being around for another trip around the sun” or something. But then my RSD would fret that that’s just weird and attention-seeking because nobody else does that, and some people might interpret it as passive-aggressively.
So. Anyway.