As part of a broader effort to clean up its network, Twitter is now inviting users to identify accounts they think might be fake. “When a user reports a tweet as ‘suspicious or spam,’ a menu appears asking why,” Fortune reports. “Users can select from a number of explanations, including ‘the account tweeting this is fake’; ‘includes a link to a potentially harmful, malicious, or phishing site’; ‘the hashtags included seem unrelated’; or ‘uses the reply function to spam.’”