Click on the new post box on the upper left hand side. Drag or pull your photo into the space, go to the copy link button, shared code, bbcode copy link and then paste into the message text box.

https://postimages.org/

Save a photo. On post image chose photo album. Chose picture. Done... when process completes. Scroll to direct and hit twice. It will say copied.

Paste on DU text

photo to the app. Save it there. Then copy the url or the jpg address the app gives it. It varies how you do it. Then paste it to the website where you want the photo to render. Photo bucket is another one.

https://www.democraticunderground.com/103659987