Think about it: everybody single status update looks the same. Sure, the interfaces change over different platforms but, at the end of the day, it’s all just black text on black backgrounds, so it’s all too easy to scroll right past key pieces of content, because nothing quite jumps out. But, if you used a visual to communicate your message, used a bit of punchy type, a vibrant palette or eye-catching imagery, you have a much better chance of ensuring people will stop scrolling and have a good look.
Basically, you could have the best, most interesting and engaging written content, and it could still get lost and ignored because it looks the exact same as every other piece of content. Visual content prevents this, though. Visual content gives you free reign to customize your message, use different techniques and mediums to get your message across, it’s really an infinitely useful tool.