They're doing it for months, escpecially on ARR S ranks. I reported one of them today and i'll keep reporting them everytime they do same thing. They also share link on linkshells and kill hunts before people reach the hunt location and make fun of people. They probably maxed mount speed in all locations but they still early pull. They're having fun by making fun of people. I don't know are they using 3rd party app but SE have to do something about this.