In one of my previous posts, I questioned the position of the ‘author’ in the context of academic discourse, extended to the visual authorship in case of images.
On checking the FAQ page of Pinterest, below is their policy, and having signed up for this through usage, would of course cover all material: user content would include images and comments, both mine and the MOOC participants.
A sobering thought…. where lies intellectual property?
b. How Pinterest and other users can use your content
You grant Pinterest and its users a non-exclusive, royalty-free, transferable, sublicensable, worldwide license to use, store, display, reproduce, re-pin, modify, create derivative works, perform, and distribute your User Content on Pinterest solely for the purposes of operating, developing, providing, and using the Pinterest Products. Nothing in these Terms shall restrict other legal rights Pinterest may have to User Content, for example under other licenses. We reserve the right to remove or modify User Content for any reason, including User Content that we believe violates these Terms or our policies.
c. How long we keep your content
Following termination or deactivation of your account, or if you remove any User Content from Pinterest, we may retain your User Content for a commercially reasonable period of time for backup, archival, or audit purposes. Furthermore, Pinterest and its users may retain and continue to use, store, display, reproduce, re-pin, modify, create derivative works, perform, and distribute any of your User Content that other users have stored or shared through Pinterest.