I’ll add one more comment as a person who once worked on something similar to this. It looks like lots of people were working on “location based tweeting” aroun

I’ll add one more comment as a person who once worked on something similar to this. It looks like lots of people were working on “location based tweeting” around 10 years ago. It makes sense as around that time Twitter was growing fast and location based services like Foursquare and Gowalla were popular. As well as Google/Niantic Ingress. Our iteration was based on the concept of “shouts” that had a location and a visibility radius. Reshouts would increase the radius further.