Why not try to make it difficult for normal users to steal or “use” your content?
I’ve added oncontextmenu="return false" onselectstart="return false" ondragstart="return false" to my body tag:
body oncontextmenu="return false" onselectstart="return false" ondragstart="return false"
This at least ...
Search engines do not punish you for bad sites linking to you.
The reasons are numerous, but simple: first, web spammers have many sites which they cross-link... and to avoid the appearance of "sites only pointing to bad sites", they make a point to link to many good sites also. But also is the problem of the "Joe Job": a competitor, ...
What would you do in my situation / what is best for SEO?
Set in your website content:
Comprehensive information about the publisher and the copyright holder of the content.
Copyright license in the content of your website.
Comprehensive information about the author of each article.
Date of publication and modification of each article in ISO
Genuine sites (which respect copyright laws and know what fair use is) either provide a link or at least mention the source.
Either way, I don't think automating link addition to the clipboard is going to help.
I would not do this because as you mentioned, it would be a negative signal for your site to be linked to from a lot of spammy sites. Furthermore, there isn't any guarantee the site will keep the link.
The good news is that generally speaking Google can tell which is the original. As long as you produce quality content and your site is of sound quality, your ...