I don't care to celebrate birthdays. This somewhat upsets some friends and family but I tolerate their eccentricities too. I enjoyed, mostly for their own sake, my parents acknowledging it & my brother and I offer token calls to each other on the other's birthday. A cousin and I take each other to lunch when in town.
My not caring much for the birthday celebration stems both from my efforts to subdue ego and from my equalitarian outlook. You would think everyone has one but only some are celebrated, leaving out in the cold those who are not. From when I was born, mom celebrated me with a party, inviting all my little friends, most of whom did not have parents do the same for them. That made me feel uncomfortable, even as a child aware that I was getting what my friends did not and I carried those feelings into my adult life.
I generally don't bother with online greetings, though this title drew me in. I can tolerate guys reaching out more than those singled out. For every person made to feel special are 100s of guys who look in passing as the party passes them by and so I limit my participation.
Happy whatthefuckever! Ain't I a pleasure in this matter. Woohoo.