I will never know why people like Pinterest, and I don't really care.

I just want to ask people to stop uploading my work there; people never ask, never cite credit, never link back and it doesn't generate any traffic for me, much less any extra work.
All it does is create content for Pinterest, which generates revenue through traffic and advertising. And forces me to take time I could have used to make more original content to contact people and send out DMCA notifications. And write journals asking people not to be presumptuous with my work, which anyone can look at for free on any one of the many the sites I chose to post it on.

I would rather spend this time drawing instead, so please stop reposting my work.
If you REALLY want to post something of mine somewhere, just ask. It'll take me 2 seconds to say "Yeah, sure." or "No, thank you." instead of 10 minutes to compose and send a DMCA notification.