I know that this thread is very old, but anyone who is interested in this person can find his channel under a new name. You can still find him on YouTube by searching for MeepMarmoset, but the new handle is Seaman Fliffmaster.
He has reposted some old videos and has talked about where is now (or was a while ago). He appears to be more nonbinary than anything else.
I know that YouTube is full of trans guys who have documented their transition, but there were fewer when I was starting my process. So maybe these videos are not particularly remarkable. But he does document most of an entire process, and his current status is particularly interesting to me. I have never truly felt female or felt that anything female was really right for me, no matter how much I tried to embrace it. I had top surgery soon after starting T, and I hate the other parts that I have. I identify as one hundred percent male.
But this guy apparently hasn't had any surgeries and is at peace with his parts. It sounds as if he is off T for now. He does not appear to identify as female or as fully male.
I'm using male pronouns for him. I hope that's okay, not that he will ever come here and read this.