Problem found with Aussie Forum:
Photobucket Causing Grief With Hosted Images
If anyone in this forum has hosted their images on Photobucket and then linked the image to a forum post, then your image in the post will most likely disappear, if it hasn't already.
Photobucket has changed their TOS with no warning, and are now demanding $399.99pa if you want to link your photobucket images to another website.
Most of the world is calling it ransomware - if you google photobucket, you'll find many thousands of references to the chaos it has caused in forums worldwide.
If you have a photobucket account, I suggest you make sure you have a backup copy of all your hosted images, as it seems that not paying up may result in you being locked out of your account.