Ofcourse, if you want your site to be up when it has 25 upvotes on hacker news, it's best not to worry if your web application is written in C++, Go or in Ruby (or sadly but likely, PHP), but that it doesn't actually have to spawn hundreds of processes and hundreds of connections and allocate hundreds of megs of ram to accomodate your visitors.

So, please just use nginx to host some static html files for your blog, and fetch your discussion boards asynchronously..