Problem being that if you have a look around these suggestion forums, alot of the posts are from very new BB players. When the responses to there suggestions are boarderline rude like yours, they likely never post again.
I agree the suggestion forum needs to be a place for full on discussion, but should also be a place where people feel like they can suggest anything. Even if it may seem stupid :) The suggestion forum is slowly become a place that only certain people post in, not a place that is very welcoming.