Hello! It seems you need clarification on the difference between "hobby" and "profession".
I take photos for a hobby, because I enjoy it. It doesn't form any part of my income and I don't give a toss who copies them.
My friends take photos for their profession. They work hard, buy expensive equipment and don't have any other form of income except payment for freelance work and the royalty sales from their previous photos. If someone publishes their photos and does not pay them, they go hungry and if this continues they will either a) die of hunger or b) abandon 30+ years of experience in a field in which they are experts and find a new field.
Now I realise this happened with coal mining in the UK for example, and not every profession will last for ever, but if you're going to throw an entire industry on the fire then you had better have a very good reason, and a nebulous "information wants to be free" of the fact you can't be arsed tracking down or paying the owner of a photo you happen to like is arguably not enough justification.