http://www.pcgamer.com/bethesdas-creation-club-archive-is-being-downloaded-automatically/

Bethesda’s Creation Club has proved to be divisive, unsurprisingly, but free mods aren’t going anywhere, so you won’t need to spend any cash on credits or purchase these ‘new’ premium mods. You might, however, find mod files being downloaded without you knowing about it. 

Users have reported that files for every mod on the Creation Club are being automatically downloaded along with a regular, bug-fixing patch. It’s struck some as a little bit cheeky, wasting storage and bandwidth for something they either have no interest in, or can’t use unless they shell out the cash.