Fwiw, this made it to the front page of All on instances other than yours. Not that it's in any way OP's fault, seeing it just might confuse or alarm other who aren't paying close attention.
It just gets annoying after a point. Other countries, particularly Canada, the US and the UK get basically the entire internet for themselves. Especially America, where no matter where you are it's just automatically assumed you're American and know everything about America. Not specifically directed at the comment above, but it does get really annoying that we can't have a single place on the internet where people won't be get confused and complain about how differently we do things and have things on different dates
I can't blame them, that comment annoyed me too. This community is literally called "Australia", is on the "aussie.zone" instance, and it's icon is Australia. I don't see how anyone looks at that and goes "oh they must be talking about British holidays!"
Usually it's because they don't even look at the context. So many people on social media are just living their lives on autopilot, mindlessly doom scrolling and having emotional reactions to headlines without ever actually clicking through to the article or reading the body of the post. It's the reason why misinformation spreads so easily online.
For people from high population countries in particular, they all share that same mentality where they think the world revolves around them. Everything they see is through the lens of their own culture and they're completely ignorant of anything that might be happening outside of that bubble.