Anon Email I Answered A Craigslist Ad With My Anon Yahoo Email But The Reply Showed My Full Name? How Do I Take It Off?

I answered a craigslist ad with my anon yahoo email but the reply showed my full name? How do I take it off? - anon email

Yahoo Mail> Options> General Settings> Name and E-mail-> name (Remove your name here)> SAVE
(These particular names are all outgoing Yahoo NOW. Yahoo is to do so.)