I configured it to use the nerdy personality when I used it to help me on a personal project (setting up a home server, nothing too fancy). LLMs are great at parsing documentation and combing through forums to find out the configurations that matched my goals.

The first time it said something along the lines of "let's use these options to avoid future gremlins haunting you", I sort of rolled my eyes but it was okay, I thought its attempt to sound endearing almost cute. A bit of a "hello fellow kids" attempt at sounding nerdy.

It quickly became noise though. It was extremely overused. Sometimes multiple mentions to goblins in the same reply.

I don't really have an opinion about it, but I sort of came to prefer a more neutral tone instead.