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/
I understand that. You and I are decent human beings, but a lot of people are dicks. So the instance owners should be the ones active at protecting their resources.