If I took a photo off your photography blog and used it on my corporate website without your say or input, I don't think it would be unfair to call that stealin

If I took a photo off your photography blog and used it on my corporate website without your say or input, I don't think it would be unfair to call that stealing. Doing that on a mass scale with an obfuscation step in between suddenly makes it ok? I'm not convinced.