Also pretty sure it is a feature because the general population wants to have pleasant interactions with their ChatGPT and OpenAI's user feedback research will have told them this helps.
I know some non-developer type people which mostly talk to ChatGPT about stuff like
- how to cope with the sadness of losing their cat
- ranting about the annoying habits of their friends
- finding all the nice places to eat in a city
etc.
They do not want that "robot" personality and they are the majority.