Well, a lot of religions created before the modern era of banking say that lending with interest is a sin, and there are some people that still believe it.

Also, most of the Muslim world works off of banking without usury.

Most of the Muslim world just offers financial products that have "fees" coincidentally exactly equal to the interest a non-Muslim bank would charge.

Correct, but those financial products don't have a tendency to combine in weird ways the way interest bearing systems do.

I've flagged this. Please read the HN rules

"Be kind. Don't be snarky. Converse curiously; don't cross-examine. Edit out swipes.

Please don't fulminate. Please don't sneer, including at the rest of the community.

Comments should get more thoughtful and substantive, not less, as a topic gets more divisive."

https://news.ycombinator.com/newsguidelines.html

The comment I responded to advocates for a world where this forum would never have existed. I could have been less snarky, but I am genuinely mystified how someone could have posted such a thoughtless and unsubstantiated comment and seemingly not even realized it.