Simply put this is the forum for testers to:

-Discuss the current state of the game
-Give direct feedback on what they think to the developers
-Provide suggestions for what they think could help the game

With that in mind there are a few tips that can really help improve everyone's experience of these forums:

-Search for a topic you want to discuss before you post about it. If you want to talk about it there is a good chance someone else has already beat you to the punch, if thats the case search for common terms, such as "overdrive", then post in the topic that corresponds to what you want to discuss. Keeping similar topics in popular threads makes it easier for the developers to monitor what people think and act on it.
-Set out your ideas in a clear, descriptive and structured manner. If you post with clarity, forethought and good simple language skills, your underlying point and opinion is easier to understand. Simply saying something like "Overdrive is hard" isn't very useful, whereas something like "Overdrive is hard because of A, B and C reasons. I think doing X, Y and Z could help this." Is *far* more useful to both developers reading the thread and anyone else who may want to discuss it with you.
-Be polite and considerate at all times. This is a suggestions and feedback forum, which means that inevitably different forum users will have different opinions on what suggestions and feedback are the best. However, having a different opinion to another user does not give you license to argue with or attack that user. Instead discuss it with them in a polite fashion, considering both your own opinion and theirs. Arguments help noone but serious discussion is always useful.
When responding to someone else's idea, state why you disagree. Even if the idea appears to be more stupid than the proverbial inflatable dartboard, at least give reasons why this is so. Posts proclaiming the original idea is stupid without stating why are useless and will be nuked.

Thanks for reading,
Zhou