Threads appears to be rolling out a new location tagging feature that allows users to add a location to their posts. Some users have reported seeing the change in the Threads app, although it doesn't appear to be available to everyone yet.
The feature is similar to location tagging on instagram. When you give Threads access to your location, you'll see a list of nearby places to tag, though you can also search for a place manually. For example, I saw that some users were already jokingly labeling their posts as “hell.”
According to a Meta disclaimer in the app, the company plans to share location to better personalize Threads by showing “personalized content” about nearby places. The change could help improve Threads' search functionality, which often remains lacking, and make the app a little more useful for following breaking news and other timely events.
The change could also prove useful in the future, when Meta finally turns on advertising in Threads. Mark Zuckerberg has said that the company plans to continue growing the service before bringing ads to the platform, but obtaining users' consent to share locations would provide crucial information for the company's advertising machine.
Meta did not immediately respond to questions about the feature, but it appears the company is still rolling it out. Location sharing appeared for me in the Threads app, but then disappeared about an hour later. It doesn't appear to be visible yet in the web version of Threads.