Great example from Inside Facebook of why consulting your community over core changes makes sense, after Facebook had a lrage scale revolt recently after unilaterally changing its T and Cs:
As part of its new process for updating the site’s new Terms of Service documents, Facebook has announced the first-ever user vote on proposed changes. On April 16, Facebook will be posting revised versions of the new Facebook Principles and Statement of Rights and Responsibilities governing documents based on feedback it’s received since introducing them in February, and the voting period will run from April 16 to April 23.