I probably won't complain. It's just awkward, and they credited, and in practice I have not set up my website in a way so that I could effectively remove my art again, because I allow robot indexing and archiving, so for example my art is also on the WayBackMachine and so on. Even though in principle I much rather have people link to my site or embed a preview from my dA account, so that I notice views and traffic, and maybe get comments sometimes.

It's more that I'd really prefer fandom to be as considerate of artists as of authors and think this Tumblr thing and art reposting through, before it just becomes established.