Oh funny, I forgot about that. But at the time it didn't seem unreasonable to withhold a model that could so easily write fake news articles. I'm not so sure it wasn't..
Either 3 or 3.5 also had "it tricked our researchers and tried to to escape so we had to dumb it down before release" marketing. What actually happened was someone asked it something like "how would you escape detection" it replied telling the person that, basically just regurgitating a regular sci-fi plot.