Reddit mentions of The Diamond Sutra

In The Diamond Sutra: The Pefection of Wisdom, Red Pine (Bill Porter) translated each chapter, provided his own commentary, and quoted other commentaries.

Chapter 12: ... wherever but one four-line gatha of this dharma teaching is spoken or explained, that place is like a stupa in the world of devas, humans, and asuras.

[Red Pine:] This teaching is the true body of the Buddha, and wherever even a single gatha of this teaching is spoken or explained that place shall be venerated as if it contained the relics of a buddha. In fact, these words do contain the relics of a buddha.

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Chapter 15: ... Moreover, Subhuti, wherever this sutra is explained, that place shall be honored. Whether in the realm of devas, humans, or asuras, that place shall be honored with prostrations and circumambulations. That place shall be like a stupa.

[Red Pine:] Much of this last section repeats what is said in Chapter Twelve, where the Buddha says that any place a gatha from this sutra is recited is like a relic stupa that contains the remains of a buddha. Hence, it is honored by those beings capable of understanding its significance: devas, humans, and asuras.... Once again, the Buddha reminds us that this teaching does not come from buddhas, rather buddhas come from this teaching. For this teaching is the diamond body, the dharma-kaya, the body of truth, which buddhas realize and teach to others.

... Asanga says, “Those who uphold this teaching sanctify the place it’s found, break though all obstructions, reach all knowledge quickly.” Vasubandhu comments, “Those who uphold this teaching ‘wear enlightenment upon their shoulders.’ Hence, wherever they are that place is honored with incense and flowers.”

This is what I have

The Diamond Sutra https://www.amazon.com/dp/1582432562/ref=cm_sw_r_awd_SJq9ub01CV1H4
https://www.amazon.com/dp/1582432562/ref=cm_sw_r_awd_SJq9ub01CV1H4

Unlocking the Zen Koan: A New Translation of the Zen Classic Wumenguam has been helpful. Also, reading Red Pine's translations and commentary on the The Platform Sutra: The Zen Teaching of Hui-neng, Heart Sutra and Diamond Sutra. Although many people speak of the influence of the Lankavatara on Zen, I find it very difficult to read, even Red Pine's fairly approachable translation. But, the idea of "no views" and "no perceptions" was helpful, and "to speak of [this] to to speak of not [this]". Those themes come up often in koans. And studying Lao Tsu helps. Despite what the "not zen" crowd says, a background in Mahayana Buddhism and Taoism, and some historical background really does help a lot. Currently reading Ordinary Mind as the Way: The Hongzhou School and the Growth of Chan Buddhism and The Hongzhou School of Chan Buddhism in Eighth- through Tenth-Century China to get some background on Mazu's lineage. Like many westerners, I used to think koans were just about derailing rational thought. While that is useful, now I also see some patterns, a certain amount of "sense", and more experiences of "of course". Easier koans like, it is your mind that moves help with the more difficult ones. Another helpful one is What are you doing? What are you saying?.

Congratulations on proving I am not omniscient, replace the words "have been told" with "have read" if you like. Whether you have been told the misinformation or have read it, you are still clearly misinformed and it doesn't matter how I think that misinformation came about.

So again, read the sutras before making claims about what a particular school does or does not involve. I hear the Diamond Sutra is pretty popular in Zen, maybe start with that?