Opinions are mine. Mine! All mine!
I've only ever seen one time it was tried. The experiment was wildly successful: https://www.nationalreview.com/2014/01/voter-fraud-weve-got-...
This project is an enhanced reader for Ycombinator Hacker News: https://news.ycombinator.com/.
The interface also allow to comment, post and interact with the original HN platform. Credentials are stored locally and are never sent to any server, you can check the source code here: https://github.com/GabrielePicco/hacker-news-rich.
For suggestions and features requests you can write me here: gabrielepicco.github.io