Reporting a topic concerning a collection of collectibles on the MPC (My Premium Collection) platform is a responsible way to bring attention to topics that may violate platform guidelines or contain inappropriate content.

Here's a nicely detailed guide on how to do it:

1. Log In to Your MPC Account: Start by logging in to your MPC account using your credentials to access your profile and the topics link.

2. Locate the Topics Link: Once you're logged in, navigate to the "Topics" link.

3. Find the Topic to Report: Identify the topic that you want to report. You can find a list of topics you've created or topics you're browsing on the platform.

4. Access Topic Options: On the topic's main page, look for the option "Report Topic."

5. Report the Topic: Click on the "Report Topic". This will initiate the reporting process.

6. Provide a Report Message: In the reporting message box, you'll be asked to provide a report message. Explain the reason for reporting the topic, providing specific details or context if necessary. Be clear and concise in your report.

7. Submit the Report: After composing your report message, look for a "Submit" or "Report" button within the reporting interface, and click on it.

The platform's moderation team will review the reported topic and take appropriate action based on their policies and guidelines. This action may include reviewing the topic's content, contacting the topic creator, or taking other measures as necessary to address any violations or concerns.

Reporting a topic responsibly is a valuable contribution to maintaining a safe and respectful online environment on the MPC platform. It helps ensure that topics align with platform guidelines and provides a mechanism for addressing content that may be harmful or inappropriate.