They want you to give them money
If you have the direct link you should be able to open it, save the image and reupload it to Imgur
For example this signature of mine has a watermark
https://forums.d2jsp.org/img.php?x=341366But if you click the image to go to the direct link, the water mark is gone. Save the image from there and then upload it to a different host
This post was edited by Josha on Jun 23 2021 10:39pm