Dear Michelle Takaoka
Please report this as a Crime of Harrassment by Computer to the Fairfax County Police Department. Call or use the "Telephone Harrasment" tag at
https://www.fairfaxcounty.gov/police/howdoi/communityreportingsystem
FCPD can determine the person that began this topic fairly swiftly.
§ 18.2-152.7:1. Harassment by computer; penalty.
If any person, with the intent to coerce, intimidate, or harass any person, shall use a computer or computer network to communicate obscene, vulgar, profane, lewd, lascivious, or indecent language, or make any suggestion or proposal of an obscene nature, or threaten any illegal or immoral act, he shall be guilty of a Class 1 misdemeanor.
https://law.lis.virginia.gov/vacode/title18.2/chapter5/section18.2-152.7:1/