The above could be mostly because the community on here, doesn't necessarily need/want to survive on pure speculation. Sure you can do forecasting and projections, but when compared to traditional investment methods, e.g. compounding, load averaging and buying "blue" chip stocks - it seems high risk, low reward.
--
Now if the conversation was more on blockchain, and what problem it solves, I can see it gain traction on here, especially when Visa wanted to hire "blockchain engineers" and when they even purchased other companies in that similar space. Also, startups, well, when they were "startups" like coinbase adding a new coin, and such, etc.