It's called "A Big Boy did it, and ran away", aka "It wisnae us, Guv"
This is the text of the (to give them credit, admittedly fast) response I got from the website that was using my blog post, as mentioned previously:
So, according to them, it was posted on their site a while ago (I'm assuming in 2008, as that's when the posts lifted from me and others were created), and they got permission from the authors at that time?
Well, unless I have changed personality since 2008*, I never gave that permission, so that's no real excuse.
And...as of now, my content is still there. How long exactly should it take to remove my content? How long should I give them, before moving from Slightly Irritated into Quite Irate?
* Admittedly, this is a faint possibility - maybe I had a psychotic break, gave them that permission, and forgot about it, and neither I nor anyone else realised I'd been temporarily mad, and randomly giving away my intellectual property rights...