I know it had been countlessly stated that they don't. However, that could just be their pride in not complying with graalians since they have their own forums they would technically rather us use (we have to pay to use those).
Sure, PC graal forums and Graalians are very different- PC graal forums to better suit their needs. However, Graalians gets a WHOLE lot more of attention and frankly has a lot of input and suggestions they could view as useful.
Graalians is basically a roundup of what the playerbase thinks of everything with little moderator intervention, it is definitely the best way to keep up with the majority of the community and where it is headed. I bet they read these forums very often