https://github.com/bakugo
Odds are it would harm real discussions more than it would harm bot spam.
The bots exist for a reason, usually to covertly advertise a product, and by themselves already cost money to run. Someone looking to astroturf their AI B2B SaaS would probably be more willing to pay $10 to post than a random user from a less wealthy country who just wants to leave a comment on an interesting discussion.
This 3-year old meme video is becoming more and more relevant by the day: https://www.youtube.com/watch?v=-gGLvg0n-uY
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