Yeah, I really hate when people post those too. But now I know that they don't do it on purpose. The way this site parses the link makes the link invalid, so it takes you to a default login page. It seems to add a break in the line so the link isn't complete.
Damn! Up until now I thought I knew everything... wait a minute... I guess now I do.
Oh, and as to the question "Is it Bierce or Peirce?" It's both! You know Ambrose. It would look silly to sign a quote as "Ambrose Pierce or Bierce" so you just have to pick one. Ambrose only used one at a time.