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?
Imgbb.com worked fine when I used it, and I saw other forum members saying that postimages.org is a good alternative.
Note that I didn't research how strict they are with proxy and other things, but it's certainly good to have several image uploading alternatives available.