Here's an idea. Let's do a monthly (or weekly, or whatever) interview, Slashdot-style. Only instead of a dubious iCelebrity, choose the victim among ourselves. Call it "K5er of the month", or "Featured Kurobot", or "Spotlight". Give it a section of its own. Spotlight, not a bad name for a section! Below I will try to present a framework for such a feature.
Choosing a victim
This could be done by site admins, similarly to the process of, say, selecting current poll. Naturally, an informal feedback of the participants is essential here. If this looks too authoritarian to you, here's an easy alternative. The admins (or the softwares) randomly select 10 or so candidates among those who agree to participate, and post a poll. The featured kuron is the one who harvests maximum votes.
Choosing the questions
That's the easy part. This is done much like on the site formerly known as That Other Site. An article is posted with an invitation to ask questions. Questions are posted as comments. Ten or so most modded up questions are forwarded to the victim.
Answering the questions
The interviewee, naturally, may choose to decline answering a particular question, or elect to answer one which is not among those highly modded up. In order to boost quality, I propose that the answers be submitted via our normal article submission process.
K5 used to feature a periodic column, called "Tell us about yourself" or something like that; I forgot. Why is it no more? I suspect one reason is because it was too crowded. When you read about 400 or so users in one fell swoop, the information tends to overflow your buffers and spill all over the place. But there's probably another reason: it was boring. People only told superficial details about their lives, and not their thoughts about what's really important to them.
Everyone can submit a diary
Seriously, why do we need to ask people questions? The diary section is open, if you want to tell us something, just do it! The answer to this is twofold. First, not everyone is prepared to share, out of the blue, his thoughts on everything. Some people need a little incentive! Second, even if you are prepared to tell us everything, your thoughts may be scattered around tens, perhaps hundreds of diaries and even more comments. Step into the spotlight!