Name of the violator: see in screenshot. i dont know russian.
Realm, where you saw the violation: X100 but was cross server.
Description of the violation: All the time was moving faster than mounts.
Proof: http://postimg.org/image/a0u1ajkkl/
Comments to the situation: if you say about "lack" of proof, i can say that wow admin panel dont use any icon on hacker to identify them.