As far as the one-hour-rule goes; if I get an email about taking down content at 01:00AM, then I will naturally be unable to respond for atleast another 5 hours, German courts atleast agree that for such things, it counts when you are first aware of the illegal/infringing content, even if it's weeks after (though you already have an obligation to operate a contact through which you can be quickly reached when you operate in germany atleast, IIRC this proposal will introduce that EU-wide which is good IMO).