Comment by fwipsy

POV OpenAI, early 2021. You have a pretty good next-token predictor called GPT-3. You noticed sometimes it can do useful things if you write out the start of a task and let it predict the next step. However, sometimes it's very difficult to frame a task that way. So instead you train it to predict the answer based on a question or instructions. Oh wait, it didn't get it right the first time... better let users iterate too. Now you have a conversation.

Things like loading indicators are basic good UI dating back to the 90s.

A/B testing and generally following user preferences might still push towards the dynamic you're describing, as it did with gpt-4o. xAI and a few other companies like Replika also intentionally created "companion"/porn AIs. But in general, natural language was previously exclusive to humans. It's completely natural that the first technology capable of it would therefore be perceived as more human. It's worth trying to resist this tendency, but it doesn't require evil intent on the part of the creators.