This just in. A competitive team in Garena got DISQUALIFIED for bm'ing the enemy team.
It's a match of Mineski-X against DSP.
https://www.youtube.com/watch?v=p9rvc7Cjsn0&feature=youtu.be&t=10605
AFAIK, it's situated at 3:50:42, where Mineski-X's Lee Sin attempted to kill Nami but failed, and then a few seconds later, he disrespectfully wasted his Flash in front of the enemy turret.
Another one would be at 4:04:15, where the team is seriously desperate in giving the Penta, and again, you'd see Lee Sin attempting to flash in for some "Insec play" bullshit & got himself killed.
What happens next? You guessed it. The winning team, Mineski-X, got disqualified for a number of BM attempts.
I dunno about whether LCS/LCK etc. has this kind of policy for disqualifying any team who BMs, but may I suggest that these types of BM to be reportable for public games as well? Especially the "please don't end" attitude like the ending. More context about this can be found here, a thread I've already made months back: