Regarding copyright, let's discuss the general guidelines. Although it's not directly related to the original post, it's important to understand. If a website includes share buttons for platforms like Pinterest or Facebook, it typically means they are open to having their content shared on those platforms. However, their expectation is that when you share, pin, or post their content, you provide a link back to their page. This is because they want to benefit from the exposure, which is fair.
If a website has share buttons, but you simply copy and post their content without linking back to their page, you are taking a risk. If the original content creator discovers this, they are likely to be unhappy and may file a DMCA (Digital Millennium Copyright Act) complaint against your post.
If a website doesn't have share buttons, but you still choose to share their content, it's likely that the same principles apply. If you include a link back to the original page, the owner "might" be fine with it, but if you don't provide proper attribution, they probably won't be happy. In some rare cases, you may receive a DMCA complaint even if you did link back to the original content because the owner doesn't want their content shared at all.
When a DMCA complaint is filed, Pinterest will automatically remove your post. You have the option to appeal, but you need to provide specific evidence that you were allowed to share that content. If you receive numerous DMCA complaints, Pinterest may suspend your account. Although you can appeal suspensions, reactivating accounts, especially those with a high number of DMCA complaints, is not guaranteed.
I hope this information is helpful to you.
