Not to get off topic but I was a Meetup organizer for a year. In theory it's worth the ~$8 - $10 per month they charge. But I have two major complaints (from when I used MU a couple years ago):

1) Their onboarding sucks __for organizers__. When someone is new to Meetup, Meetup forces them to pick three (or more) groups to join as part of the sign up process. The person may or may not have an legit interest in your group. Maybe they came for another group and your group is just fulfilling the onboarding process.

This matters because if as an organizer you went for their cheaper tier w/ a smaller group size you get to that cap fairly quickly. Which mean you either keep the group closed and "eat" the dead members, or you pay more so you don't have to close the group.

2) You can send a group email / message but they have no analytics. Not even something as basic as an open rate. You can export members but not their emails so something like MailChimp is not an option.

After a year I decided that Meetup was good for Meetup but not for me.