No. You can register for Harvest using any name you’d like as long as you use a valid email address. However, there is no reason not to use your real identity. Your profile is not publicly visible and will only become available to certain firms where you proactively request information. 

NOTE:  If you plan to Contribute Content to the Harvest Community, you will need to use your real identity in order to have your profile Verified.  To learn more about contributing content, click here