The problem you're having has to do with Japanese fonts on your machine. Lucky or unlucky for you, take your pick, but this has nothing to do with being able to see or not see the password. Because the passwords (so far) have always been composed of Latin characters and Arabic numerals.
What you're supposed to see instead of all those question marks is a 2ch cat with a "KITAA~!" message attached.
As for the question of a password, look for something you can see in the text you just quoted that might be a password. If it doesn't work, try alternate spellings because capital letters are registered differently from lowercase letters. Also be aware that some of the newest uploads of Leechasd's have passwords that are not contained in the attached textfiles and are nothing more than random character strings.