Other Too much noises on my bow

Hello

I've got my new MK bow. I'm shooting well at the moment but archers said to me that my bow is making noises after I shot the arrow.
I've asked one of my coach about my noisy bow, he said my stabilisers are making too much vibrations causes loss of energy.
He said about adding Rubber Dampers on my stabilisers. I've researched on Dampers, dampers are also can add on upper riser
or lower riser or back grip riser. I need information about dampers on stabilisers and upper/lower/back grip riser. anyone know
anything about dampers on your opinion?

1. What good about adding dampers?
2. What happens if you don't add dampers or what happens if your bow are making too much vibrations?

Thanks

Sam