It not just the performance or code snippets available on internet for a particular language that matters to a programmer. The community around the stacks you are using to build the product is equally important.
I have been using https://stackedit.io/ for sometime and I find it way too satisfactory in terms of it's features, can be popped open anytime in a browser and works offline too.
I would like to hear, what is the core problem that LightPaper is trying to solve here!