Imgur now blocks several VPNs and have issues loading embedded previews in several fediverse platforms. So instead of using imgur, you could use one of the following alternatives for uploading your images.
https://postimages.org/
https://imgbox.com/
https://imgbb.com/
https://www.imagebam.com/
It requires a lot of storage space. Much more than for just text.
Also, additional liability for hosting images uploaded by literally anyone, that could depict abuse, or be copyrighted.
Ahh so if somebody did that, the blame would fall on the site that has the image posted