I can agree with Guy. We have a risk based moderation module as part of our Phoenix platform at TigerSpike. We build UGC sites for telcos and media groups, and I am afraid that depending on risk appetite, there is NO SUBSTITUTE for human moderation when talking about videos and images. Our innovation Lab looked into advanced technologies that look at skin tone etc etc.... but beware automated models, they don't understand context and are not effective for advertisers or brands in my opinion