The thing that concerns me about 5 auto-flags is that sometimes users are wrong and now it only takes one user to spam-delete a post. A statistic that would help me better evaluate this is: on each site, how many organic spam flags are dismissed or disputed? If even site users sometimes get it wrong -- and they do, particularly on questions where product links in answers are expected -- then allowing a single user, native or (especially) visiting from Charcoal, to cast binding spam flags gives me pause. But I have anecdotes, not data; can we get data? (It would have to come from SE, I know.)
I'm glad to see your team working on tools to help moderators monitor what's going on. I'm going to need push notifications, not just pull (the dashboard), which I understand is possible.