This is a letter by Leanne Mills who transitioned in 1995. An organization called “Mermaids” is mentioned a few times, this is a pro-trans organization in England that zealously promotes transition at young ages. The parent who runs the organization took her son to Thailand at 16 and had him surgically castrated. As a result Thailand changed their law so an operation such as this could never be performed on another underaged person.
The letter is published on a website called Transgender Trend. It is a site that supports parents who are questioning the dominant narrative regarding trans children.