The JRA promotes the junk rig because that's what it's there for. It's an organisation constituted to promote the junk rig. Good. So there's no question then about whether or not we "should" be promoting the junk rig.
"Promoting" an idea doesn't mean demanding that other people take it to heart, it doesn't mean being strident about it, it doesn't mean taking umbrage when, to use the religious parallel that seems so unnecessarily to have crept into this discussion, people do not immediately see the light and become converts.
"Promoting" an idea means getting it out there, it means getting it discussed, it means making it visible. Then, if and when people come looking for it, it means having the information to hand that will help inquirers to become better informed.
Arne said "...In contrast, when our '50 good reasons for JR' recently were presented in a boat design forum, they were not well received."
I just read the thread that Arne talked about and, looked at in light of what I've said above, Arne is wrong and gives a dangerously misleading impression of what happened in that thread.
http://www.boatdesign.net/forums/boat-design/top-50-advantages-junk-rig-49409.html
If "well received" means that there were suddenly thousands of screaming converts then, no, that wasn't what happened. If "well received" means "given thoughtful consideration and discussed seriously" then that was what happened.
We send out ripples. We can do more. Often, out on the ocean of the future, those ripples will be flattened by the waves. But sometimes, and magically, our ripples will become the waves themselves.