I lack imagination. What is GPT-3 (and generative text models in general) useful for, other than toys? It can write essays, can we expect it to replace writers for newspapers and magazines? Can it write coherent technical documentation? Replace speechwriters?
Edit: looks like the comment thread below is similar https://news.ycombinator.com/item?id=32554955
Marketing copy - https://www.copy.ai/
Coding help - https://github.com/features/copilot