Survey existing users to collect their "Role" for further analysis

Problem

As a Product Manager, I need to know which personas are likely to become successful users of GitLab. Currently, we have no way of determining which personas are most likely to be successful at each stage. As a result, I cannot tell if we have been successful at onboarding users onto their successive stages, nor am I certain that we are pushing the correct people through the top of the funnel at about.gitlab.com

Proposal

Survey existing users to get their Role, as it relates to GitLab's predefined personas so that further analysis can be done. Add their responses to the Role field.