Why not letting the user directly submit feature requests, leave feedbacks and report bugs?
We know that the most important thing that allows a developer to build a high-quality product is the feedback from the end-user.
Receiving them during the beta-testing phase or submitted through email from the user may not be enough and its not simple, fast and fun.
For every custom skill, i would like to use Built-In Intents, example:

AMAZON.FeatureRequestIntent:

• User: "Alexa, tell {skill_name} that i would like to leave a feedback"
• Alexa: "Please tell me more"
• User: "I would really appreciate if i could {action...}"
• Alexa: "Thank you for making me better"

This will allow users to REALLY BE AT THE CENTER of the skill also after it has been published, will help developers manage feedbacks in the backend and store them, and will lead to less negative feedbacks leaved on the Marketplace.