Recently, I noticed that every blog is including a line at the bottom that says:
The post XXX appeared first on blog YYY
where XXX is the blog post in question and YYY is usually the post owner's blog (as opposed to someone else's blog). It looks like it is giving credit to its own blog.
My question is if there is any legal reason for doing this. Does adding this line gives the contents more protection? Or is it for other reasons such as SEO?