Phillip J. Long, The Book of Enoch for Beginners: A Guide to Expand Your Understanding of the Biblical World (Rockridge Press, 2022), 82.
Modern readers of 1 Enoch might be surprised that one of the great evils the rebellious watchers introduced into the world is writing. In this section [i.e., 1 Enoch 37-71], Enoch says humans should not prove their trustworthiness through pen and ink. This is especially strange, since Enoch himself is a scribe and, at several times in 1 Enoch, he writes books. How can a written document condemn all written documents as evil? The author of the Book of Parables must have something else in mind.
In the Epistle of Enoch, Enoch warns his readers against those who “write lying words and words of error” because they lead astray with lies (1 Enoch 98:15). It may be the case that the author of the Book of Parables has in mind the kind of writing that leads people astray. There are many examples in the Old Testament of lying prophets leading people astray. The Dead Sea Scrolls condemn wicked teachers leading people astray with their lies. Jesus warns his followers to be on guard against false prophets who will lead many astray (Mark 13:6). The New Testament book of 1 John uses similar language to describe the work of false teachers.
Common to all these examples is that the speaker (or writer) claims to speak by the authority of God, yet from the perspective of a certain group, they are false prophets and lying teachers. It may be the case that Enoch’s community saw literature produced by other groups as dangerous, since it led people away from Enoch’s group.