IMHO there is little chance that an online-only community could replicate the successes (many friendships among the members, very high levels of enjoyment, motivation and engagement) of LW NYC.
Why not? Well, at the risk of putting off those readers who dislike explanations from evolutionary psychology, friendship relies on complex functional adaptations that were "tuned" or "designed" by natural selection for an environment in which every friendship has significant costs. By "costs" I mean that either the friends had to pay the social cost (which was significant in the ancestral environment) of being seen to be talking to each other or they had to go to significant trouble to talk without being observed.... (read 208 more words →)
Increasing the volume of alignment research helps only if alignment research does not help capabilities researchers, but my impression is that most alignment research that has been done so far has helped capabilities researchers approximately as much as it has helped alignment researchers. Just because a line of research is described as "alignmnent research" does not automatically cause it to help alignment researchers more than capability researchers.
In summary, I don't consider your (a) a cause for hope because the main problem is that increasing capabilities to the point of disaster (extinction or such) is easier than solving the alignment problem and your (a) does not ameliorate the main problem much if at all for the reason I just explained.