Unfortunately I'm getting a 503 on https://bitcointalk.org/index.php?action=login2;ccode=... which makes it impossible for the parser to log in. But at least it's something I can experiment with and see if tweaking some parameters would help.
login2 happens when you click the "Login" button. I guess it redirects to index.php and throws the error, but at that point the login is completed and cookies should be good so I'll try to ignore that error and see if it can proceed.