btw saying "kys" isn't a death threat, its a request. a death threat would be a statement that implies the message that said writer of of the threat will kill you.
EX: i gonna rip your toes off and make you suffocate on them.
that would be a death threat, because i said that i would do something to the receiver that would cause death.
"KYS" isn't a death threat because it doesn't say the writer of the message will kill you, directly or indirectly