For every one person who mentions it, it's usually safe to assume there are at least 20 people with the same complaint -- at least that's true in most customer service situations. The ones who don't mention it to you complain about it to their friends and family and sully your image without your knowledge; the one who actually complains to you at least does the favor of bringing it to your attention.

I asked a state senator about overly-bright bicycle lights not long ago -- so far, at least, it's way below their radar in a sea of red ink. Wait for someone well-connected to have a well-publicized accident with some yahoo with an HID lamp aimed in drivers' faces, then see what happens.