There is a solution I am working on at the moment.
If you replace ycombinator in a url like: https://news.ycombinator.com/item?id=41816756
with gipety to get: https://news.gipety.com/item?id=41816756
you will get a page that remembers the comments currently displayed. On subsequent refreshes you will see any new comments highlighted in green.
It is not yet quite ready but if I get some positive feedback I might do a Show HN about it. (Would be ironic if too many people tried it and my site crashed ;)
To summarise that post, it brought me about 95000 hits on the first day. That was a simple, static, standalone HTML page and the traffic was way below what Nginx can handle without breaking a sweat, so never had any trouble on the web server.
[0] https://jeremyphelps.com/blog/from-idea-to-revenue-in-5-work...
Would suspect that number is much, much higher now.
* The Hacker Fair reverse job fair at the Hacker Dojo. #2 was "the CIA got hacked". Proud of that one.
30000 visitors per day is 20 per minute.
With stats like that, break out an AWS XL and ensure your Lambdas are ready.