Boeing 757-200 —

Again here my question: what does a photo like this contribute to the flightaware.com photo section?

This photo is moderately interesting in that it includes several aircraft in different positions.
However, what does intrigue me is how details (aircraft type, airport code, and often tail number (registration) are added to "goodluck747400" postings.
When I look at "goodluck747400" posts in the most recent items they never have any detail concerning airport, airline, aircraft type or tail number.