I made a little project taking this idea to an extreme. The idea was, that you should be able to generate "meme" image macros simply by typing a URL. That way you could create memes on the fly anywhere that you can enter a URL (Slack/Twitter/Facebook/etc.) without having to leave the app. Just type a URL of the form:
If you are at all worried about it going away, you can add:
?host=imgur
To the URL and it will 301 to the image hosted on Imgur. That is assuming you have more faith in the longevity of Imgur than you do in the longevity of my side project :D
That's really cool. I use something similar (http://memegen.link) in my noddy project "Zen D Trump", which takes his tweets and pastes them on pictures of relaxing things like beaches and waterfalls.