Thanks everyone for your support and votes! We’re working on enabling commenting for dashboards and reports in the Power BI service soon. Stay tuned.Raj Bhandal commented
I think the feedback mechanism could be the same as how you are collecting ideas for improvement here. People can submit ideas and others can comment or vote on them. This is key in our organization.
I think the feedback would need to be separable for feedback for improvements, vs. questions on the substance of the existing dashboards or reports themselves. Both are important.