One of the more, uhm, visible Instagram models, nicknamed "The Iron Mermaid", shows us how it's done.
@YouDidNotSleepThere is an Instagram account with more than 30,000 followers which was created by a frustrated woman Luisa who got tired of all the unrealistic travel photos on the Instagram. That’s why she is calling them all out for posting lies.
After one woman from Calgary, Canada shared a photo with her now ex-husband in front of the Court House where their marriage ended, the trend started to rise in popularity. Happy couples that are not together anymore use these selfies to celebrate all the sweet years they have spent together, and not everyone can do that.