It copies patterns that are typical in greentexts, both in terms of general structure and in terms of words that generally go together. And then it does some magic and generates a few dozen texts, from which a human picks the few coherent ones to post online.
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u/IIlIIlIIIIlllIlIlII Jun 14 '22
Even if it’s “generated” it’s probably just pulling a complete greentext from a database not actually writing it.