Nodeloc true it really depends on your audience. If your audience looks at your site in a realtime fashion - so constantly refreshing to see content/posts/replies - then using a websocket implementation will reduce the burden on your server as updates will come in when they happen. Also, pusher might be less of a burden than realtime if realtime is hosted on the same server, as pusher is a third party service that takes over the effort of publishing.
