You’re more right than you probably realize!

I always thought it could be because volume-wise, most English prose is probably marketing copy and actual clickbait; so when you train on the entire Internet, you get a troll adept at writing ads. Then people ask AdBot2000 to write a novel and are upset it reads like the next iPhone launch site.

It's more likely that this is from the training data if they're being trained on reams of Internet stuff.

It's not clickbait, it's automated empathy!

/s