I can garrentee this has been posted about before but how is it people are still able to glitch on the test track, we had a guy called[Mod edit - WSD, naming and shaming is not allowed] who did it all the way through playing each round of Tag and it spoilt it for everyone else, most of us didn’t want to leave as it was fun until this person went out of the area, can the people that do this not get reported elsewhere as the Xbox reporting system never seems to get issues resolved until they have been reported multiple times by different people which never usually happens. I know its a glitch and others are free to do it but when its a game with mates and you want to show them something like this then fine but dont do it to spoil others gaming experiences.
If you are sure its been mentioned, then you should have searched for the original threads and seen the responses there. Report them, block them and move on.