Foursquare: entertainment for users, spam for non-users. As a non-user, they provide an easy means to identify and remove people from my social networks who are willing to spam me.
Seriously, apps that send messages to non-users by default are annoying. If I cared about where you've been, I can join Foursquare on my own, I shouldn't be required to block every new app that comes along, it should be opt-in.
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Foursquare: entertainment for users, spam for non-users. As a non-user, they provide an easy means to identify and remove people from my social networks who are willing to spam me.
Seriously, apps that send messages to non-users by default are annoying. If I cared about where you've been, I can join Foursquare on my own, I shouldn't be required to block every new app that comes along, it should be opt-in.
What path are they using to spam you? I've never seen foursquare spam.
It spams feeds. So you end up with a lot of checkins inside of Twitter, FB, etc. Depending on how linked the person's accounts are.