You know what.
The great joy of forums is that no matter what you say to give an enlightened response to a question it seems you're gonna piss someone off or someone else comes across as the font of all knowledge and pisses on your response.
So what do we do, ride along in complete silence for fear of upsetting noise sensitive people then get taken out by a cage driver who's u turned in front of you and forgot to check his or hers mirrors.
Or do we blip our throttles and pip our horns and hope we don't upset mr angry.
And it's not revving an engine for the sake of revving it it's letting someone know you're there, which is exactly why you're supposed to sound your horn and flash your lights so I can see no reason that a quick blip of a throttle could of be used in the same way.
We should get things into perspective, I never said I rev the nuts off my bike just to let someone know i'm there,blipping the throttle is not revving the nuts off it,and I don't consider it arrogant, neither do I ride around blipping the throttle just to piss off the neighbours. I'm too long in the tooth for that shit.