BMaC
Adventurer
The journalist C.J. Ciaramella has a fascinating piece on the FBI's Gary Gygax file. Ciaramella obtained it via a FOIA request. You can read the article below which has a link to the actual file.
A few quotes from the FBI:
"[name redacted] advised that war gamers are generally extremely intelligent individual. Often they will live frugally to support the cost of the wargaming hobby. [name redacted] further advised that the typical war gaming enthusiast is overweight and not neat in appearance."
"[Gygax] is known to carry a weapon and was proud of his record of personally answering any letter coming from a prison."
https://reason.com/blog/2017/06/15/dd-creator-gary-gygaxs-fbi-records-make
A few quotes from the FBI:
"[name redacted] advised that war gamers are generally extremely intelligent individual. Often they will live frugally to support the cost of the wargaming hobby. [name redacted] further advised that the typical war gaming enthusiast is overweight and not neat in appearance."

"[Gygax] is known to carry a weapon and was proud of his record of personally answering any letter coming from a prison."

https://reason.com/blog/2017/06/15/dd-creator-gary-gygaxs-fbi-records-make