I can also look at the 6 pictures and accurately guess who the bad guys are. The 3 who are frowning like they're being photographed against their will for a mug

I can also look at the 6 pictures and accurately guess who the bad guys are. The 3 who are frowning like they're being photographed against their will for a mug shot are bad. The 3 guys earnestly smiling and wearing suits are good. I dunno if the sample from that page is representative of their test set, but if so, it's pretty weak.