Is SharePoint 2013 a product or a platform?

My colleague Apoorv Durga pointed me to an interesting paragraph in a Microsoft SharePoint Team blog post entitled The New SharePoint. To quote:

Use SharePoint as an out-of-box application whenever possible - We designed the new SharePoint UI to be clean, simple and fast and work great out-of-box. We encourage you not to modify it which could add complexity, performance and upgradeability and to focus your energy on working with users and groups to understand how to use SharePoint to improve productivity and collaboration and identifying and promoting best practices in your organization.

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