Twitter 'alerted NBC to British journalist's critical tweets'

    "If what NBC is saying is true, it undermines
    everything that Twitter stands for and is an
    absolute disgrace and will aggravate many
    millions of its users,"

The vast, vast, vast majority of Twitter users won't hear of this, and the vast, vast, vast majority of those that do, won't care. Twitter can do this because they know that the backlash will only come from the tiniest enclave of users, and nothing will change.

Twitter: Too big to fail?

Let's say someone posted a negative tweet about you, and included your contact information.

Would you want Twitter to notify you about it and see if you wanted to file a complaint, or would you rather just sit in a deluge of hatemail with no idea of where it's coming from?