When I come across them, I will send you the link from now on. I'm so used to seeing art without credit on Tumblr that when I see some that I know of, I'm simply dying to add credit so that's what I focus on hah. I'll skim through my history of posts, cause I know there's one that I reblogged recently to add credit.
There was also one that was just flat out saved from my post with sufficient credit and posted onto someone's blog as if it was their own. I contacted tumblr staff about that and they got the post removed. I still wish they would freeze that account..