Anna in the story did not express regret that she never joined. And as far as we know, Alexei wasn't expecting her to take his invitations either - because it wasn't about actually getting her to go to the party, it was just about communicating to her that the "we've stopped inviting you to our group events because you always say no" moment never happened and she was still a part of the group. That was what she had appreciated in the end.

On the other hand, what your group attempted seems more like a concerted push to change the person's behavior. Most people would probably reject that if they want to stay in control of their own plans.

All advice has limits. In this case, "telling your friends to schedule their calls with you" is that limit... and then some.

frankly I'm a little jealous.... I can't imagine anyone, let alone a whole friend group, putting in that level of effort to stay in touch with me. I would probably disappear from everyone's imaginations if I didn't regularly reach out to people.

This is a good thing!

It doesn't (necessarily) mean that person doesn't want to be friends or doesn't value your group; it means they feel comfortable telling you how they feel even though doing so is a mild violation of social norms.

If I were in your shoes, I'd just make sure they're not accidentally booted from the group chat (etc.), but otherwise just leave them be. Maybe a couple of times a year mention something like "We're all going to ___ next week, if you'd like to join. No stress!" just as a keepalive, but otherwise let them do their own thing.

I have several very close, long-term friends that I've not spoken to in months or years, because that's just who we are and where we are in life. If any of them called me in an emergency I'd drop everything to help them, and I'm 100% confident they would do the same. We _have_ done that for each other before.

I think the moral is for everyone to be individually a bit nicer, not one friend group to support an entire community.