It is absolutely a suicidal act craving for personal publicity. Public display and wide dissemination of these type of acts through print and online media, in particular social media create an urge in young minds to try and do a similar or different type inviting possible chances of death or permanent injuries.
I suggest the videos should be removed from the web and those who do such things should be punished so that there is a sense of fear among others who may attempt such things in future and prevent them from doing so. Congratulations to Dubai Police for taking the first step to warn such people.
Letters to the editor, The National dated 20 February 2017 on the topic