Some people just think it's funny to throw smokes and flashes when they're not supposed to, and shoot silenced pistols and throw grenades at people.
Like what kind of person are you that you get excited at the slightest bit of something?
"OH I AM TROLLING THE EC'S BY THROWING FLASHES KEEP DOING LOLL"
No, I will find you and kick you in the head.
But seriously, just listen to the EC's and if you don't want to then don't ruin the fun for others~