Yep - let me un-state, or re-state, or real-estate, or whatever. As long as wearing the button is ENOUGH, and fine with you, WHENEVER you choose to wear it, then fine. It's WHEN and IF you EXPECT something because you are wearing it it becomes an issue. And is it my business? Maybe - maybe not. I choose to think and feel it is, if a system has to be changed (and perhaps maybe affect me if it IS my birthday,. and I can no longer get a button, or have to show ID, or maybe none of these things) because so many people who DID wear it when they did because they DID expect something ruined it......you know - some bad apples spoiled it for the rest of us. Is my moral compass set kind of high? Yeah, maybe but I hold myself to the same standard I hold others. And their issues affect my life, then it becomes MY issue - sorry - that's way it is, and I did not choose for it to be that way.
So -in closing - to reiterate - wear buttons whenever you chose, and if that's the ONLY thing you want/do expect - fine - celebrate away, whenever and however you wan, and I'll even say "happy birthday/retirment/anniversary/whatever when I see you with it on. That's what I'd do too. But wear it and EXPECT something because of it - sorry - not gonna fly in my book. Ever.
Last but not least - I believe the OP posted this question in the true spirit of healthy debate - and - for the most part, people have been doing that. Let's please all just remember and stick to that, please. Again - that's what these boards are supposed to be all about.