I'd recommend not using image shack or anything else like that for posting images or screenshots. PGD is great for hosting your image files, you just have to upload from YOUR computer for it to work. And it works well! No broken or slow loading images. (That's why I switched web hosts! )
Didn't pgd reduce image size though? We like details It doesn't need to come with bandwidth cost, 200-300kb limit would be acceptable for most. We can compress images with Gimp or something, without losing fine details.