For people who uploaded there from the start, it's a cup of sour yogurt to move their hundreds, if not thousands of pictures elsewhere. I guess photobucket chose the way of the dodo.
That photobucket thingie is a change on Photobucket: you now have to pay at least USD 100,00 a year if you want to link from external sites... A great way to loose users fast, I think... I'm also really curious about what you did.
Will create a new thread in the general forums after moving my pictures (I maybe exceeded some quotas on Photobucket... as Meits mentionned, that might be a clever way to make you pay after you uploaded 100+ pictures!).
I can promise you that http://www.msx.pics will be free for MSX users as long as I'm physically and mentally able to host it :D