If the persona is succesfully achieved it should complete a role as a narrative driven communication tool. This aspect is shared by other personifications concepts from other disciplines, such as literature or acting. I think that a well executed persona will have a whole character, feelings, temperament and habits that will surpass a pretended "individualism" and will become also a base of knowledge that will certainly pop up later.

Don't let the person feel judged and maybe become a figure more close to a confident?

It pushes the person into the spontaneity. For spontaneity it's good to build up confidence on the interviewee and humor (?)

Treat the interviewee as a person. Not having a "mine" to extract information, but a person with genuine feelings, thoughts, problems and with a life overall.

As a student in the new generation of UX designers i've been more sensible to these matters but i do see signs of alternative behaviors emerging (the right to repair, for example) which could benefit hugely from our discipline methods and learnings.

Anyone wants to go to the movies later?