Source: http://mashable.com/2015/01/22/twitter-i...

Twitter has a message for its top users: Stop sharing Instagram links.

The social network sent out prompts Thursday to a batch of its high-profile users, nudging them not to tweet links to Instagram photos, and instead post photos directly through Twitter, according to a copy of the prompt obtained by Mashable.

The prompt (screengrabs of which you can see, below) was sent out to a group of notable users in media, entertainment, sports and other categories, according to a source close to Twitter. That same source characterized the prompt as an educational effort to show the service's celebrities and influential users how to use the native photo function to boost engagement.