I didn’t mean that FlySpray was not user friendly, it is and frankly it’s far better than the tool available on sourceforge (and any tool I have used so far). I think it’s more of a side effect of the forums efficiency : people get answers and get them fast => they don’t bother to submit bugs or problems because most of the time, the thing will be solved even before it’s submited...
Forums are great, but not when it comes to capitalize knowledge, in my opinion. I think the FAQ could be the missing link between the forums and the doc. It’s a first step to formulate a structured answer. The doc is yet another step of making a coherent whole with those answers.
I agree about the FAQ being part of the official site (and Aour has built a
FAQ snippet 
). FAQs have limitation and can become clumsy. More often than not, they are not read (I can see that, since I have been trying to maintain a FAQ for the french forums). But you can refer to them when asked a recurring question : it’s a time saver for me, and also it forces me to make a note of what thread contain answers to typical problems. I have links handy when I need them.
I think it could help doc writing too...