Yeah that didn’t make sense to me either. For a split second I thought it might have been satire. The title says “how not to be a cultist”, and then the first few bullets all talk about how to make sure people are aware your ideas come from other people. The first sentence literally says to make sure people know “your project is part of a larger and much older tradition”. And then it goes on to say you should tell people “I learned from these people, and maybe you will find value in them as well”.
That kind of sounds exactly like a cultist to me. Glad I wasn’t the only one who found it to sound ironic.