The ImgBB image isn't showing up for me at this time, and seems like it's hit and miss.  If I refresh the page it'll show up half the time and the other half I get the proxy error.  I just used PostImage for the first time, I really like that site.  If you have an image in your clip-board you can just call up the site and hit CTL+V and it'll past and upload in one fell swoop.  That's one of the features I liked about ImgBB as well.

Well, now it looks like I have two decent sites to use for hosting images.  I do hope ImgBB get their ducks in a row soon, I've posted tons of images here that are hosted by them.