One more consideration. There are thousands of Freepers and tens of thousands of lurkers (and I could be off by a significant factor) who are not whining, complaining, bashing etc. for no reason, but are “passing through” and might come across the information you provide, either serendipitously or by looking specifically for this kind of information or arguments pro/con on the subject (FR tags are very useful).
So, “if you build it, they might come” and be affected by your info or arguments but because of the nature of Internet, you might never know if or when it happened. So don’t get too frustrated, you may be a lot more successful than you might think... or ever know.
All this bellyachin' we're hearing is not from freepers in general, it's only coming from the noisy morons. We don't need to do anything with those guys other than accept their irrelevance, move along, and endeavor to engage the sane majority.