SSMS is great, there are also plug ins if you need it. I don't see any advantage of linq over sql. And I'd guessing SSMS would get cheevos before LINQPad. Considering VS unoffical Cheevos screwed up my VS, I wouldn't install a plugin like that anyway.
Speaking of Cheevos Stallion83, is going to break 1 million on Monday at the Microsoft Titanfall event. He had a marathon yesterday 11k Cheevos in 24 hours.
I'm not going to talk bad about Node.js because I don't know anything about it. I don't understand why you slam on tools and then admit you know nothing about them. Especially when all of the assumptions you've made in this thread have been wrong.