I’ve written many times about toxic fan groups, and one of my oldest friends in fandom wrote me a letter about it. Printed with permission and light edits to remove personal information. Yesterday I got into a twitter-spat with a friend from many years ago. It was really kind of terrifying, but it gave me the opportunity to reflect on one of the things I am most thankful for.: Having known you. That fellow and I were once quite tight. What’s scary is that looking back I was well on my way to ending up like he has. The man I spoke to yesterday was once just like me and…