Oops! That's a harsh decision on them from theymos, but I have nothing to say than they deserve it.
They were blocking Bitcointalk proxy. Wasn't it harsher for all users? What if they start blocking the Bitcointalk proxy again? The same thing will happen again, and we must find a solution. To prevent the same situation in the future, theymos decided not to allow new images from Imgur anymore.
But to prevent this from happening again, you'll get an error if you try to embed imgur images in posts from now on.
Moreover, theymos will create a page that will recommend services like image hosting. He is looking for feedback from community members. You may suggest to him the best image hosting you are using.
I'd like to create a page which recommends services for hosting forum images, and mention this in the error message you get when you try to use imgur. Other than TalkImg, which ones are good?
Personally, I would recommend using Talkimg since they are the only service exclusively for BitcoinTalk forum users.