So, it seems that there would at least be an impetus to "get out and see" rather than write it off wholesale, like I've seen done by those without direct experience. For those that aren't interested, don't care, then fine - ignore it and move on. Why spend the energy combating the notion of it if you aren't going to follow up and get hands-on experience?
Budd, are you familiar with the concept of signal and noise? The "ignore it and move on" approach works in some circumstances, not in others. A forum ceases to be useful for its intended purpose when the signal -- the posts and comments that are on the topic of the forum -- are drowned out by an incessant high volume of posts and comments on another topic, any other topic. If I go to a physics forum and start posting about grilled cheese sandwiches (because after all, don't the laws of physics apply to grilled cheese sandwiches?), and for every post on a real physics topic I post one or two grilled cheese posts, it's a bit disingenuous to say that the solution is for the people who want to discuss physics to "just ignore it".