Edit (and shameless plug): http://assil.me/2015/11/07/roadomatic-node-vs-go.html
You might need to read the previous post (and only other one!) to understand how the GeoJSON geospatial query works.
At best it's only a very temporary traffic boost, though, unless the content is legitimately interesting enough to warrant return visits.
I think that's what HN calls a "voting ring" and attempts to detect and counteract.
If you have any sort of long lived mobile connection, you will encounter half closed sockets due to mobile network quirks. At scale you really want to clean these up. To do so, you need an application level timeout and you want to listen to the PING/PONG control frames to reset that timeout.
Could golang.org/x/net/context.WithTimeout be used to handle this?