I have to wonder - people uploading images from pixiv, why are you so often uploading images using the following format:
http://www.pixiv.net/member_illust.php?mode=medium&illust_id=1774030
...instead of the actual link to the image, like: http://img09.pixiv.net/img/kumadano/1774030.png
I understand that when you click the sample size to get the full size, the URL that comes up is the top one (which is useless for mass editing and find artist!). But there are easy ways around this.
If you're pasting the source in manually, just right click the image and 'Copy Image Location' (in Firefox, or the equivalent in other browsers) and use that instead. That will give you the link.
Or use the danbooruup extension. I do, and it always inserts the true URL to the image, automatically, every single time. Requires no input from me.
Unfortunately, only people who actually read these forums will ever see the suggestions, but at least that'll help stop it from happening in some cases.
Updated