Before I start doing this, can we decide on a common format for reporting, so it will be easier for mods to check on?
As LoiceV's alt said, it's probably a waste of time to go after posts, and far better to focus on users that really deserve a ban, so a standard report might help also the mod when evaluating the situation

I'll reserve my chunk tomorrow, but just to make sure, modlog stores the data for the last 7 days, right?
If the user has been banned after the 17th his id should still be there?