Gerry, Christa from Civil here. If the comment is from a veteran commenter (that is, they've had more than 10 comments approved by the community), we anonymize it! 

We do this to prevent bias in the rating—if you recognize a username and avatar that you don't like, you might be tempted to rate the comment as "not civil", even if it is! Our back-end algorithm also does a bunch of analysis to prevent rating bias and to keep the comments from becoming an echo chamber. 

But, you aren't getting three comments from the same person. We just want there to be as little bias as possible, and anonymizing the usernames and avatars goes a long way toward that.

Sounds like there is a lot of confusion around this, though! Perhaps we should just remove the username entirely for these anonymized ones.