> The page also pulls a lot of scripts off the Internet on every load, so that too is not explained anywhere clearly and it's absolutely not good for hosting private photo archives.

Well to be fair, that can be explained by the whole 'drop this PHP file in and wham' model they are going for. Personally I would not advertise / make something like this as the single-file model becomes more and more of a constraint as the project evolves. It feels needlessly limited just to fit the single-file goal.