With photobucket, if you have the Pro account, it allows you to upload images in full memory size, but doesn't automatically show them in full size, unless you choose to view them at full size. It actually works great for me, as I upload at full memory size, which gives me the security of having a lot of my pictures backed up, in case of hard drive failure. Plus I have them all backed up to a external HD.
When I post pictures on forums, I usually post full sized pics, though some forums don't allow that. This one does!! Though I'm not sure if Premium Membership is required for full size posting or not.
BTW, Finn, still waiting to see pics of your newest Zoanthid acquisition!!!