There seems to be a little confusion in what Photobucket is doing.
As I understand it, they are blocking access to your photos from websites, forums, blogs, etc where you've linked to the photos hosted on their site. They're not keeping you from accessing those photos.
This has nothing to do with the amount (gigabytes) of storage your photos occupy on their server. It has everything to do with the bandwidth consumed as the photo is "summoned" from Photobucket to be displayed on various places throughout the internet.
For example, let's use beemerdons' favorite. You only have one photo on PB, but it's an exquisite photo of Salma Hayek draped all over you after a fabulous ride on the Dragon. The photo's so good, you post in on 35 internet forums and your 5 blogs, and it goes viral because it's mentioned on TMZ. Each embedded instance of the "hosted" photo requires bandwidth through PB and PB's ISP, and the fact that it goes viral requires a lot more bandwidth.
PB pays for bandwidth, and you're using up a LOT more than any of their other customers, so -- zing -- you exceed some bandwidth limitation (maybe explicitly stated deep into their Terms of Service) and they decide to suspend linking to your photo.
So ..... while you may only have one photo stored on your PB account (the 2.0 megabyte file of Ms Hayek and you), the number of times you've referenced it is using PB's bandwidth beyond what they expected.
It will only get worse if other internet citizens get the PB address for your now-favorite-of-all-time photo, and post it on their own websites ("Get a load of this geezer with Ms. Hayek. He must be rich, because he sure ain't in her league.")
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