The website's owner/admin had it's own version of the "Rumble Strip" called "The Pit Stop". It's a place for non-GT-related talk. (Try the Rumble Strip, it's fun at times.)
About a year ago, he closed down that forum on his site, which is much older than GTP; thus, about 300 of GTF's most active members left to form GTX (granturismox.net).
GTF is a ghost town. It's a pathetic shadow of it's former self. However, everything you've ever needed to know about GT, GT2, and GT3 is still archived via the search function.