It's not possible to blacklist "Anonymous" as an author; anonymously authored works still show up. Which I really wasn't expecting to happen, based on how pseudonyms and blacklisting/whitelisting are handled (I couldn't just put in the pseudonym itself, I had to enter it with the author's primary account name in parentheses afterwards, like it's displayed on the fic, for it to work) and how that implies this is just looking at the exact text as shown on the page.
It's not possible to blacklist "Anonymous" as an author; anonymously authored works still show up. Which I really wasn't expecting to happen, based on how pseudonyms and blacklisting/whitelisting are handled (I couldn't just put in the pseudonym itself, I had to enter it with the author's primary account name in parentheses afterwards, like it's displayed on the fic, for it to work) and how that implies this is just looking at the exact text as shown on the page.