@freemo @jenny_wu Taken very literally, "X should be murdered" is not a threat: it's simply a statement about a world you'd prefer to live in. Obviously that approach makes no sense, because then well-understood codes speech becomes a way to skirt around any laws prohibiting threats.
If one tries to include various coded threats, then the statement itself is not enough to detemine whether it's a threat: the whole point of coded speech is to make it easy to read for intended recipients and hard to convincingly convey to others, so it relies on lots of context.