It would just be through the app i.e. similar to checking in on foursquare or yelp when you're close enough to the venue
I agree with pretty much everything here and I'm interested in working on a project to solve at least one of these problems. I've been a meetup organizer for a while and I can also do fullstack JS.
Are you looking for co-hackers?
Here's my project on Project Board: https://goo.gl/VPLsoC [email protected]
> A point system that gives you points when you actually check-in to a meetup you RSVP to.
For this to be reliable, the organisers would need to do roll call, which would get tedious for meetups with 10+ people.