Well, with the recent server moving situation on anonib.com (that's the truth they lost their server, so congrats, your complaints did some good), you might think it's safe...but it's really not. These people and the people who post there are like roaches. I found this video on metacafe explaining what and who hangs out there. If you know of anyone that posts there, hangs there or associates in any way, shape or form with it...this is what you're dealing with.
..They will be back. Maybe this time we can get a little handle on it. Lock down your pics kids or have them posted next to real kids. Peace.