Sometimes we're flowing in a draft of a post when we stop to search for a picture.

Don't settle for less than perfect… later, try placeholders now.

A picture is can be worth a thousand words. Placeholders help you frame where pictures, gifs, videos, quotes, charts and any supporting content will come later.
The Next Web wrote, "A useful addition to the app is the ability to add labeled placeholders for images, videos and other embeds you may want to add later. The idea here is that searching for the perfect image can distract you from your creative flow."