Removing groups that don't exist #81
Description
When a meetup doesn't have an organizer for longer than 1 month, meetup.com will delete it.
What happens when a group is deleted:
- The page of the group does not exist anymore.
- The RSS feed replies with: 403
{UNKNOWN=[BAD ARGS] null memberOfIfPrivate}.
Example:
- https://www.meetup.com/PHL-Cloud-Native-Meetup-Group/events/rss/
- https://www.meetup.com/PHL-Cloud-Native-Meetup-Group
There should be a way to detect this and purge old (unmaintained) groups.