Earlier quoted context omitted.
Context matters. Big announcements and uninformed blog posts can kill your momentum. I still remember the Twitter dev blog where they abandoned Ruby/Rails and the damage that did. It turned out Twitter was doing a lot of stupid things and there was a mismatch of tools and their goals. They loudly blamed the tools and people ate it up because Twitter was big, visible and adored at the time. Their conclusions bypassed…
I remember that. It was the first time I heard about Scala. I saw a lot of RoR companies/users thinking “should we do the same?” without even realizing that they do not have the same twitter scalability problems.
The same engineer at Twitter decided early on that no distributed messaging technology was good enough for Twitter, so they wrote their own. It fell over and they threw it away and wrote their own again. It fell over and they threw it away and now they use mainstream tools.