Danielle,
I know there are others that also use some sort of photo hosting service of which I am not a fan off, because when you go to some of the older threads on here and on other forums, in some instances you can't see those photos. Ruins the thread.
However the photos posted from your own files such as from PC seem to be always available for viewing.
Bottom line you never have any control over photos etc unless they are 'stored' on a drive, be it external, that you alone control.
A lot will disagree but ??????????????????