Do you believe the same thing about email spam detection? Various authorities decide on the validity of email and webspam.

If people pick companies to do filtering for them, it is their choice. GMail is causing some problems. In general, most people opt to have suspicious mail sorted into a Spam folder, not deleted completely.

Available evidence doesn't support your claims.

It's a big topic and I am reluctant to invest a great deal of time trying to persuade a new arrival. Try following the links in this article for an overview of recent research.

https://www.scientificamerican.com/article/how-twitter-bots-...

http://wondermark.com/1k62/ seems apropos.

I've been on HN for 13 years, I just don't care for the voting system.