Re: Why doesn't the Met do something useful with these videos
No, its not trivial, its their job.
If what is happening in the video isn't a crime then why are they whining about it? If it is a crime then they should be doing their job. My guess is that there is very little glory in doing your job and a whole lot of looking like you're doing something while achieving virtually nothing in pointing fingers at YouTube in press conferences.
If they did their job and then demanded the video was taken down after the miscreants were behind bars, then all well and good, or even better demanded it was taken down and replaced with a re-edited version, perhaps highlighting the characters and their fates.
'Sean Dickwad, seen here making gun gestures at Petey Arsehole, 10 years for dickwaddery',
'Petey Arsehole, here recorded saying he is going to kill Dickwad and his gang, 5 years for aggravated arsehole'
Pour encourager les autres.
Ditto extremist/sexist/racist/homophobic inciting violence blah blah blah video.