I believe that there is a 'Mulder and Scully' case to be made here; since in a subject like Quantum Physics, where even highly qualified researchers cannot really claim to have a great depth of knowledge in the topic, there is still room for many more extraordinary discoveries; but unfortunately the paucity of solid QP information also attracts attention seekers and crackpots - such as those swearing blind that Britney Spears has given birth to a three-headed cow-baby fathered by the ghost of Michael Jackson, or hallucinations that they can shoot laser beams (which only they can see) from their fingertips, etc.
However (probably because of the over-abundance of quackery), those with a strong scientific bent can often be terse and dismissive of partially formed ideas or theories that do not neatly fit a standard model (no pun intended), whilst those more inclined to speculation frequently get upset and cry foul when they are merely asked to firm up their theories and reformulate them into more concrete terms...
Thus, it seems to me that a middle-ground can be reached, and the group message board reclaimed, so long as more socratic means are employed by the group, and everyone agrees to a level playing field where all ideas (except ad hominem attacks, whinging and off-topic or commercial agenda posts) are welcome - but where the originators of more off beat theories must be prepared to back their notions up with intelligent rigorous argument.
Finally, for the mystically inclined, it might be worth keeping in mind the words of the esteemed Magickian Aleister Crowley:
"By doing certain things certain results will follow; students are most earnestly warned against attributing objective reality or philosophic validity to any of them."