Current paying customers of PhotoBucket are going to be fine until their current subscription runs out, I think. At that point they will attempt to apply their ridiculous $399 a year fee in order for folks to continue sharing their images on forums and such. Right now, folks who didn't have a paid subscription at the time of PhotoBucket's applied changes got screwed and they are slowly but surely having all their content locked.
I understand that Imgur may have its shortcomings but, in the end, I have yet to find an image hosting platform to compare, especially when you consider that they offer their services for free.