"People share things on social media all the time"

IMHO it's not a big deal to share a cool picture.

"who the fuck is anybody you to say I don't own the photograph"

We, the people (including you), are deciding how to allocate rewards share to the various content. Apparently what your post looks like is not what is appreciated within #polish tag.

Insulting people is not the best way to convince others that you are right.