the term "cake day" just makes me think of r*ddit. I've seen Lemon Day going around, but we probably want to avoid affiliation with lemon party.
not that we can tell anybody what to do anyway, and each instance could even have its own. anyway, it needs to be something that obviously means "anniversary" and doesn't require explanation otherwise it'll just be annoying
cake day is a colloquial term that means birthday. it's not invented by or for reddit. also being reminded of reddit isn't something to avoid; you can survive. it's just a website. be normal.
edit: it seems like it was probably coined for reddit, but I know it also means birthday now. even if it didn't who gives a shit, the rest of my comment stands.
you know what good point, i guess i was familiar with the term before i was familiar with reddit so I made the wrong assumption. still the rest of what i said is true: it doesn't matter.
so if someone asks a question you literally cannot say that it doesn't matter, because in saying so you'll have formed an opinion on it? that's ridiculous.