I.e., three blank lines followed by “Read more:”, then the URL from which the text was copied, then an identifying hash code used for tracking purposes.
Everyone knows how copy and paste works. You select text. You copy. When you paste, what you get is exactly what you selected. The core product of the “copy/paste company” is a service that breaks copy and paste.
If you have ever copy and pasted text from a web page and there was an auto inserted line that said “read more” with a URL this is what Gruber is referring to. He offers a great solution, this was a huge annoyance for me when I am creating all these link posts. Thanks Gruber!