What are WordPress Meetups & 5 Five good faith rules

Meetup groups are locally-organized groups that get together for face-to-face events on a regular basis (commonly once a month). Anything that brings together 2 or more people to share their WordPress experiences counts — there’s no minimum number of attendees or required format. These events (commonly referred to as meetups, which can be confusing since people often use the same word to describe the group itself) take many formats: presentations/lecture series, hackathons, social gatherings, workshops, coworking, running a WordPress help desk, contributor sprints/drives, and others.

For groups that are hosted on meetup.com, there is an official WordPress account. WordPress meetup groups that are part of this account receive certain benefits, including having the meetup.com dues paid by the WordPress Foundation.
Having a meetup group on this account does require following a few good-faith rules that were created by a group of volunteer meetup organizers:

Five Good Faith Rules

1. WordPress Meetups are for the benefit of the WordPress community as a whole, not specific businesses or individuals. All actions taken as an event organizer are with the best interest of the community in mind.
2. Membership in the local meetup group is open to all who wish to join, regardless of ability, skill, financial status or any other criteria.
3. Meetups are volunteer-run with volunteer speakers. In cases where a modest attendance fee might be necessary, this fee should only cover the costs of the meetup and shouldn’t be used to pay speakers or organizers.
4. Meetup groups allow events to be organized by any reliable/trusted member of the community.
5. Meetups are welcoming places where everyone works to foster an accepting environment which is free of discrimination, incitement to violence, promotion of hate, and general jerk-like behavior.

We also ask everyone that organizes WordPress Chapter Meetup to uphold the principles of the WordPress open source project, including the GPL. This helps protect the user/attendee, who might not realize that by using a non-GPL plugin or theme, they are giving away the rights that WordPress provides them.

This page is a direct quote from the WordPress Community site