We don't usually conduct formal user interviews, but we do get a good amount of organic user feedback since we have such a large user base. People often write in with suggestions or issues on their own. It's not as structured as user interviews but still provides valuable insights!
@rimash No, I think most users are open to it. But they probably wouldn't be if you asked for it too often.
Interview maybe once or twice = 1 month free usage.
Surveys / questions via Slack or Discord from then on.