I enjoy how you seem to suggest that the other commenters on this article need to “get an education” when you yourself seem to lack substantial information to back up your claims.
Under section 1 of the Malicious Communications Act of 1998 it is an offence to send an indecent, offensive or threatening letter, electronic communication or other article to another person.
As a side note, this offence is punishable by up to 6 months in prison.
Therefore, Tedtheatheist and roger2000, the letter is indeed punishable by law.
I do appreciate your efforts though.
Have a nice night.