I was happy looking at the comments of this particular post, that someone else had voiced their dissatisfaction that the sources were not present. Thank you Giulia!
So let me tell you what is not proper credit: 1. unknown - um, don't use the image or track down the original source. Stop spreading this around. 2. img via Pinterest - Pinterest (or tumblr, or the like) is not a source, track down original source. 3. via - a little more description would be nice 4. via A Curated Lifestyle (or any blog) - unless the blog is the original and direct source, this is not proper credit
If everyone would do a little more due diligence in crediting then it would be less trouble to actually find the original source. So what is proper credit?