Are imperfections by definition at least yellow flags?
Different dating services call them handles, nicknames or just usernames, but they all mean the same thing.
You want to do your very best to make as much of an impact on your first impression as you can.
Simply put, with your screen name you are trying to build interest.
At any point in time, if you don’t feel like your relationship is taking, you can always go back to the well and know there is an endless parade of suitors out there. He needs more freedom and space, and when you express your anxieties, he withdraws.
Anxious/Avoidant attachment partners are, in my opinion, the worst possible pairing because your needs are, essentially, mirror images of each other.