Not to mention that a malicious app could send the user to a phishing site made to look like Flickr to get their username/password.
You can add location information to your Tweets, such as your city or precise location, from the web and via third-party applications. You always have the option to delete your Tweet location history. Learn more
Not to mention that a malicious app could send the user to a phishing site made to look like Flickr to get their username/password.