could've cutted your story a little shorter, it was overall confusing. Whose fault is it? I don't know, you never mentioned an initial mistake.
I would never call anyone a noob (now that I think about it, I rarely call anyone a noob) if they abused a certain method/weapon. It's really up to them for using proper counters, next time this happens, just politely ask them to leave every time they complain (atleast it'll get them real angry).
It is your privilege to use it whenever and however, assuming that you are truly great with it, then kill them over and over until they feel like little nublets. Its like punching a crying baby, really.