With an account, you gain access to additional features such as the ability to report intel about other commanders, or annotate your encounters in your personal commander index.
Note that gaining access to these extra features is not a right but a privilege. We currently review each application for an account and reserve the right to refuse, or partially enable these extra features at our sole discretion. To increase your chances of getting access to all the features, we recommend that you use EDR without an account first, and then apply for an account.