As a reminder: Last year, Quora moved to 'new anonymity', i.e., no more anonymity. I had received the following message on 16 March 2017:

Hello! We will be moving to the new anonymity on Quora experience very soon. If you would like to edit or delete your existing anonymous content in the future, please provide your email here before March 20, 2017. You are receiving this message because we have not yet received an email from you. Please note that if you do not provide your email by March 20, 2017, you will need to contact us using our Contact Form and selecting “I need help with my account.”