I don't like this tech in the hands of the state but I'm more worried about criminal use of this.

I think we're going to see a massive increase in extortion as people are able to collect large amounts of data on people based on facial recognition. Sure now it's expensive and slow. But it's going to get cheaper and quicker.

I'd recommend trying to avoid anything that can link your face to your identity being public and online. Sextortion is a big thing at the moment. Who knows what will be next when facial recognition becomes available to the same scammers.