I like node for system level scripting. I find bash annoying and non portable to windows. I really don't want to have to learn batch scripting for dos on windows. But I can use JavaScript with node to script in both environments.
On the server I think that node might be helpful for certain network level tasks. But I haven't used it for much. But honestly what type of person would I be if I don't even consider it? The OP seems to be making an emotional decision rather than a technical one. Interestingly he's using Scala. There are many similar posts about Scala being the wrong way to do life. I just can't agree with any of those views.
Finally I wonder what the value is for these rage posts. They just seem to further divide people. I do see the value in the posts about I've used node for X months, here's my thoughts or here's why I'm going back to X paradigm. But just a rant where faces should be punched seems out of place for HN.