Hello - I am sorry that has been your experience. While I can't say people have always been responsive to my own inquiries, or have always shared, for the most part I've found good luck, and exchanged info with some mighty nice people. I hope that I've given back as much as I've recieved from them.
I think a lot of people don't monitor their trees or message boxes here very often, which can sometimes lead to these accusations of unresponsiveness. So too, does the lack of understanding that things put out for public consumption will be eaten.