I run my generator when my boat needs AC power that the inverter cannot supply.
It is a NL unit in a sound shield and can barely be heard outside the boat or inside for that matter.
I'm not being a jerk, I'm just not going to let others dictate how I operate my boat.
That said I avoid anchoring close to others whenever possible, and I do not care if others in an anchorage run their generators
What are we going to do next... Not grill food because someone else might become offended?