I don't see that on the NaNoWriMo website ... perhaps it was a forum message from someone.

NaNoWriMo (National Novel Writing Month) is a writing challenge held in November where participants aim to write a 50,000-word novel. Camp NaNoWriMo is a more flexible version held in April and July where participants set their own word count goals. The NaNoWriMo Young Writers Program is specifically tailored for K-12 students with separate resources and support to help them complete a writing project.

While National Novel Writing Month (NaNoWriMo) officially takes place in November, you can certainly work on writing a novel any time of the year. Setting your own writing goals and schedule can help you continue your novel after November ends. Many writers use the momentum from NaNoWriMo to keep writing throughout the year.

Click on "account settings" in the "My NaNoWriMo" menuUnder "Picture" click the "Choose File" button

Select an image stored on your computer - they recommend .jpg files no larger than 100x100 pixels

Sign up for NaNoWriMo - National Novel Writer's Month. It's November - google it!