Node seems to evoke strong responses from people. As someone who has a couple of side projects running on Node in production, and also as someone who considers himself fairly language/platform agnostic - I will say this:
For a lot of people - Node allows them to do a lot of things that was previously non-trivial in Ruby or Python land. From comet based applications to using socket.io for real-time notifications. It's not that these things can't be done in other platforms. There have been plenty of Java COMET solutions. Heck, 3 years back I wrote my own multiplayer strategy game in Erlang/OTP. However today, if I were to write that game - I will do that in Node. Reactor pattern is nothing new - but if you work with Node you will realize that for certain classes of problems, neither event machine nor twisted come close to Node and its ecosystem today.
Yes, C++ servers could be faster and JS can be a terrible language to work with. But a lot of us don't care - we want to get work done and we use Node for stuff that it's good at. There are always going to be people using it for everything - but every community has its set of zealots. Someone said the other day that he/she uses Haskell for prototyping.
For a lot of people - Node allows them to do a lot of things that was previously non-trivial in Ruby or Python land. From comet based applications to using socket.io for real-time notifications. It's not that these things can't be done in other platforms. There have been plenty of Java COMET solutions. Heck, 3 years back I wrote my own multiplayer strategy game in Erlang/OTP. However today, if I were to write that game - I will do that in Node. Reactor pattern is nothing new - but if you work with Node you will realize that for certain classes of problems, neither event machine nor twisted come close to Node and its ecosystem today.
Yes, C++ servers could be faster and JS can be a terrible language to work with. But a lot of us don't care - we want to get work done and we use Node for stuff that it's good at. There are always going to be people using it for everything - but every community has its set of zealots. Someone said the other day that he/she uses Haskell for prototyping.