Sorry to reply this way, but you don't seem to have "allow direct email" enabled.
I got a reply from Chris about downloader articles and referring to their T&C's: "So 5.1C is the issue here, and you’re right: we probably shouldn’t be accepting these." Since this was also CC'ed to Sean, I imagine he has been tasked with tracking down and removing them.
Might take him a while - he's a busy little Hamster - but they'll quietly disappear, I imagine!
Bad command or file name. Bad, bad command! Sit! Stay! Staaaay...