I will attend this.

Compared to online posting, the advantage of meetups seems to be (1) less formality and (2) quicker transfer of ideas. I think this makes meetups particularly suitable for advice. I would be interested in trying some activity that promotes exchange of advice. Perhaps an activity where a person is encouraged to provide a personal problem that is in need of application of instrumental rationality, and then others try to generate a solution. Example problem classes: diet, akrasia, career, education, relationships, etc.