User blog comment:Ubersketch/Help with going into advanced googology?/@comment-30754445-20181101052501/@comment-32697988-20181101105559

I don't think he is Edwin. He is also in the googology discord, and he also made a few notations on his/her website. Also, he mentions FIH in the blog post, which is how one of his notations is called. I don't think Edwin will make a notation so that he can vandalize the wiki with people not recognizing him, considering the fact that he announced that he doesn't googology anymore (I remember seeing this somewhere, but I forgot where I saw it).