It's from a Catholic perspective, but to a large degree the primary impact of that is just to take a step away from modern ideas and draw from a historical position not well studied or understood by other people. There is not very much "bible" or "pope" in it.
It is also directly related to the topic at hand; student loan debt is considered as a form of usury.
I'm not Catholic, for what it's worth. Whether being a Protestant impacts my opinion of the topic matter... well... "it's complicated", as the social networks say. But I still found it to be a very interested intellectual case, and there are plenty of non-Catholic and non-Prostestant cultures over the millenia that have considered usury a crime as well, too. I wouldn't be that surprised our culture will yet make it on to the list of cultures that discover it's a bad idea as well, on its own merits, regardless of who notices.
Also, I think a lot of HN will actually find the ideas quite appealing even so. A lot of financial shenanigans that draw a lot of complaints on HN are covered by this conception of usury.
Which is to say notions of usury served to legitimize theft from outsiders. The rest is a shocking amount of window-dressing and apologetics.
I posted this because in the modern world, "usury is a particular and bad thing" is a fresh viewpoint, and yet, one that a lot of people here may find themselves quite sympathetic to. The idea that student loans are really getting into "indentured servitude" levels of exploitativeness is in the air, and it turns out that rather than a novel observation, it's actually an ancient one, and it can be helpful to "cheat" on some of the debates and understandings by reading the end of the book instead of trying to start from scratch.
Is it perhaps possible that some might opine that the historical context of an idea is worth knowing as part of reading the end of the book? It just might be worth considering that the historical implementations of policy around usury could not be divorced from the abstract reasoning.
In a way, it's like discussing historical Communism and Communist thought while pretending Stalin, Lenin, and Mao never existed. They all form part of the historical context that really needs to be considered an integral part of the whole.
Again, you're completely correct. There's a great deal to be learned from history!