Interviewing previous GSoC and Outreachy contributors

Once, @gitster suggested that we interview GSoC or Outreachy contributors. I think it might not be a good idea to do it during their contribution period, but I think it could be a good idea to interview them afterwards. Perhaps years after might be even better.

If they were mentored some years ago, I think it could be interesting to ask them questions like the following:

• How did their GSoC or Outreachy internship change their lives?
• Did they get better opportunities?
• Did they became better programmer?
• Did their Git skills improve?
• Are they still following the mailing list or the community somehow?

@sivaraam @jnareb and @mjaix what do you think about it?

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