I get paid to shoot portraits of people, young and not-so-young. Some of these I upload to various sites as a way of promoting my work. Although I cover myself with my contract (giving me rights to publish all images where and when I want) and embed my copyright details into each image, I need to protect my clients, especially the children. I can imagine parents would be very upset should images of their child/ren end up on dodgy websites. I would be upset, too. I put a lot of time and energy into creating my images and do not expect others to help themselves to any of them.
Theft of images is widespread on the internet. Some people don't realise they are stealing, while others do it blatantly, and even try to disguise it by removing the photographer's watermark and replacing it with their own. Some even use other photographers' images and write about how they (the thief) got the shot. The nerve!
I've come across Photo Stealers on Facebook, a fabulous page that outs photo thieves. Check them out here.
I'm prepared to take the risk of being branded an amateur. If it means my images and my clients are protected, then it's worth the risk.