It would be interesting if someone kept working on this. Or started something similar. From the thread above, it sounds like if it is changed to actually depend on user interaction somehow, and somehow ignore if the tab isnāt open, it could work ok for a small forum and not be too server intensive.
Why when thereās Pusher, websockets, etc.? Itās easier. And last time I used Pusher I got errors. And, I donāt like using third party services. Plus, why not? Why not experiment with polling?
I feel like, with coding, where thereās a will, thereās a way. Thereās probably a way to make polling somewhat efficient. Maybe not. But, maybe.