I think it's good that this is mentioned for a change. Elixir is great and HN has rightly been raving about it lately, but 95% of the Elixir resources out there are "getting started" level tutorials and blog posts. The language is too young for a lot of patterns and approaches for slightly more complex problems to have settled in people's collective minds. Plus, unfortunately there is a strong culture of reinventing the wheel and not looking a lot at things coming out of much more mature Erlang community (with the notable exception of the OTP, but that's a builtin). For example, Webmachine is amazing and totally ignored in Elixir land - unrightfully so in my opinion.

No, I believe that none of these issues are going to last very long - the community is strong, the average skill level of prolific Elixir coders and writers is pretty high, and there's tremendous traction. But currently it's the case and I'd wager that anyone raving on HN about how Elixir is the best thing since sliced bread probably didn't get super much further than a Phoenix CRUD app.