Not here to defend Jones, but he's not the first and won't be the last. These are MMA fighters we're talking about.
They're not all going to be squeaky clean, honourable people, who play nice.
If you want a clean sport without fouls, take up your grievances with the UFC's rule set, the sport's governing bodies, and the referees.
Banning fighters for life after 3 failed drug incidents would stop fighter doping in it's tracks.
Consistently calling fouls with stern warnings, with a point deduction after third foul would deter intentional fouls.
That's how we can improve the sport without bitching about Jones all day.