It's refereeing.... Not rocket science. Buzzer flags are an asset which, In my opinion can come in handy at whatever standard you officiate in. So long as you have a good, honest linesman (if not neutral) then they are handy. I don't get why so many people are against them? They are just as effective as waving an arm or using your voice, yet that's never frowned upon
Its 2016 people, get with the times. We no longer play with solid leather balls, we no longer need to write players names down on a bit of slate using stone... We are in a modern era where technology is a part of everything we do.