
/usr/share at
I wonder if there is a social network that allows sending messages to users geographically nearby. (Preferrably messages that are only available for a certain amount of time and get destroyed after that.)
X11R5 shared this.

Destruction of messages sounds problematic. You'd need centralization to make that work, and even then it wouldn't.

I think I heard of something along these lines in China. If i found the right paper [0], the name's Momo. More of an app, it seems.
[0] http://www.nicta.com.au/pub?doc=6759&filename=nicta_publication_6759.pdf
[1] http://www.techinasia.com/momo-app/
[0] http://www.nicta.com.au/pub?doc=6759&filename=nicta_publication_6759.pdf
[1] http://www.techinasia.com/momo-app/

some platforms send a "deleted" version without the content when a user deletes their post,
but of course on a federated network there is no way to be certain that every copy on every server actually gets deleted.
I think a more workable approach might be some kind of shared forum or group.
(could be maybe displayed differently depending what you want it to do.. sort of similar to what I want to do for events here)
That won't solve the problem of federating deletions but would be a lot better than some app tied to only one OS and an appstore!
but of course on a federated network there is no way to be certain that every copy on every server actually gets deleted.
I think a more workable approach might be some kind of shared forum or group.
(could be maybe displayed differently depending what you want it to do.. sort of similar to what I want to do for events here)
That won't solve the problem of federating deletions but would be a lot better than some app tied to only one OS and an appstore!