But none of these problems are relevant to GPL vs AGPL, they apply equally to both. Seriously, just diff the text of both licenses - the only difference is article 13, which is very clear and unambiguous:

Notwithstanding any other provision of this License, if you modify the Program, your modified version must prominently offer all users interacting with it remotely through a computer network (if your version supports such interaction) an opportunity to receive the Corresponding Source of your version by providing access to the Corresponding Source from a network server at no charge, through some standard or customary means of facilitating copying of software.