A static variable's initializer expression refers to an uninitialized variable, a net, a port, or a modport member, which won't have a value assigned by the time the initializer runs. The variable therefore will always be initialized to the default value.
module fly(input i); logic j = i; // Noncompliant: Initializer for static variable 'j' refers to 'i' which will not have a value at initialization time endmodule