I agree,
Renntech is for technical problems and I have my registry page over there.
986forum is great to learn about Boxsters and ask questions that are Boxster specific, I think 986forum is better than renntech for nontechnical questions because you get a faster response.
Then if I want to search for some obscure post I go to babblers, ppbb, and maybe boxa.com
I am 986forum almost daily, and the others I check every few days, for Boxsters this is the place to be!