This could be great in combination with a blog plugin. I'm not sure how useful it is for entries that already have a nice image, don't those posts already look

This could be great in combination with a blog plugin. I'm not sure how useful it is for entries that already have a nice image, don't those posts already look great in most social networks? And if you are interested in traffic generation like that your entries probably have at least one image placed somewhere and the necessary HTML tags to use them set up. When the article has no image it seems more useful, with the image insertion feature you have there :) I took a moment to understand that the form changes the background of the generated image, because the first entry of mine I tried already had an image, so I did not get what `background` was referencing. To just offer to download the image then might be not enough. Many authors won't know how to embed them as an image used by social networks. Not sure how to solve that without going the plugin route, a smaller step could be presenting the needed html, or showing a guide how to use the generated image with some popular blog engines?