I think there is a culture shift. When I was young all events would be on Facebook. For better or worse that created a source of truth (worse being that obviously we were forcing guests onto a platform that we shouldn't be forcing them on) and a whole structure that kept track of things for you.

Now a days, I see events being a post across a few chat groups, with no source of truth for time and place (and those often left out!)

I have an impression that there is a whole new generation of people who _don't_ want to post on or interact with a forum/bulletin board style of interface, but want to be part of a "living" and instant group.

I'm not part of any chat group where this is really working, but every meetup I go to, people are asking "which chat group should I join?" or "why don't I create a whatsapp/discord for this meetup?"