On every single HTML page of GameFAQs is the following request:
Feel free to link to this page, but not directly to the FAQs..
You're seeing this error message because it appears that you're linking from an external site directly to one of the text files stored at GameFAQs. GameFAQs is not a free public file server. Bandwidth costs money, and when sites link directly to files stored on the site, it becomes both a financial and resource drain. We've tried asking, but some sites simply don't care, so now we've implemented a technical solution.

Your browser is reporting that you linked to a GameFAQs-hosted FAQ from viewtopic.php?t=10422.

There are four possible reasons you are seeing this message:

You came from a direct link to a FAQ on GameFAQs from another site, and your link was properly blocked. See the paragraph above for why.
Your web browser is passing improper URL data in the Referrer header. Your web browser may be over-compensating for a mistake you made in the address bar, and passing this information unintentionally. To fix this, just click the "Home" link on the left and surf normally.
Your web browser is passing forged URL data in the Referrer header. Some browsers can be configured to hide referrer information, but instead of passing a blank header, it passes a forged one. To fix this, change your browser's security settings. If you are using Opera and having problems, try viewing this page for some pointers.
You are behind a firewall or proxy server, and it is passing forged URL data in the Referrer header. If you are using one of these services, you or your network administrator may need to change the configuration.