Their press office never responded to my inquiry, despite having gotten it.
After a few tweets, their support department responded, telling me – and others who asked – that the issue was under internal review and they’d get back to me.
Every few days thereafter, Foursquare tried to close the support ticket that was submitted as a media or press ticket.
Every few days, I replied that they shouldn’t close the ticket, because I still didn’t have an answer and neither did their users.
On January 28, their Terms of Service, last updated in August 2011, remained in effect.
Foursquare has an obligation to come up with a policy and a TOS that are consistent with each other as to whether real names are required or nyms are permissible.
Giving out one’s location information is risky, in my opinion. People who register for Foursquare using their full real name because they believe they have to to use the service are taking unnecessary risks if nyms would be permissible. Not everyone would care to use nyms, but for those who are concerned, it should be an option.
UPDATE: Foursquare has now resolved the conflict, and in a pro-privacy way. See this post.