Would it be possible to use this site to gauge interest?
For example, I could enter that I live in Maastricht, the Netherlands, and I'd be willing to travel up to 100km. Then, someone wanting to organize a meetup can see how many people are interested in a meetup in that area, or if they're close to several cities, can think about which cities make sense to have a meetup.
Second this idea; it's a good'un.
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