Did you communicate with her, Don? They will probably still come, just as they did before, and we need to stay vigilant, but you need to be sure before you cry wolf.
There is a place to report abuses: just go to the bottom of the page and click on 'Report an Issue'.
Without Kat we will all need to put on our big boy pants and police ourselves a little better now, though. Calling them out, letting them know the limits, and warning that we will report may be what it takes to discourage the spammers, scammers and other offensive characters.