I have script blocking to block pinterest blocking. I don't remember which scripts blocks it without blocking the site, because I had to block a lot of scripts. Yep, pinterest steals pix, sometimes even hotlinking, stealing the sites bandwidth too. Then to make it worse, they hit sites with a fake browser that looks like a legitimate user, so sites that prevent hotlinking still get their bandwidth stolen through the pinterest bot's browser. Pinterest makes millions of dollars per month, they shouldn't need to steal bandwidth off any sites, esp. poor or independent ones on a budget where used bandwidth jacks up the cost of servers & maintaining the site.
I have nothing against sharing or displaying hard to find stuff, but a multi-million dollar corporation shouldn't be hotlinking or using sneaky tricks with browsers built into their servers to deliver the images or videos right off the originating site's servers & bandwidth at the originator's expense.
I've caught them doing it to us too. I can block their isp, but then they just get in on another ISP, use a proxy, or get through using their members ISP - even stealing their member's internet connection bandwidth. Very nasty stuff & sneaky policies.
My trick against them these days is I watch for images & files getting an unusually amount of hits & downloads, then rename the file so their link is broken, but still works at Betty's fine. That's also the reason we change our address & URL once or twice a year, it breaks all the links to galleries, images & stories, where they're carrying only a link of the material, or feeding it through a browser on their servers, where our server were actually delivering the content to them.
It's especially annoying where they don't even refer to the original source of the material & give the site they're stealing it & bandwidth from credit, or provide a correct link to them.
Like, some will say the material they took from here is from buffalobetties.com, but buffalobetties.com is a domain name, not a web address unless it's preceded by http:// like in
http://buffalobetties.com but because that isn't the full URL of this place, even that address won't get you here.