Access to scholarship is often behind a online journal or database subscription paywall or out-of-reach geographically. While there are many reasons to make research/data open access (unrestricted access and use), you should also be sure it's the right decision at the right time. Once it's online, it's very difficult to undo. You'll want to consider all of these questions (and others) before putting material online:
This was an urban legend that was harmful not only in terms of infringing on the photographers copyright, but also in terms of spreading misinformation. The photographer was actually intending to dispel myths and misperseptions; blindly re-sharing without verifying only served to add insult to injury, virally.