The prevailing answer right now is that the subculture needs to be infinitely accommodating to newbies. This... is perhaps not the wisest answer, as it is the

The prevailing answer right now is that the subculture needs to be infinitely accommodating to newbies. This... is perhaps not the wisest answer, as it is the kind of thing that tends to provoke a backlash. Certainly, telling people that their culture has no value whatsoever does not generally incline them to welcome you. The only viable solution I can see to the basic failure to communicate that you can describe is for either mind-reading machines to be deployed or for highly formalized channels to be adopted. The former are still being worked on and the latter just makes life harder for newbies, assuming they work at all.