Oh wow, I didn’t think 30 personality was possible, haha. I’m guessing your other stats were almost 0. John Doe is the default if there aren’t any matches. To reveal a bit of how the matching works, each famous John has hidden ideal stats and in order to match you need to be within 5 points of their top 2 stats. If you match with multiple John’s, it’s then ranked by how similar your point spread is to theres and a rarity value for ties.
I don’t think I added a John that’s all personality with no other stats but need to think of one now!