Originally Posted by
IndianaRecRider
But being distracted, there'd be less chance of them noticing it in time to correct their bad driving behavior.
A loud horn is only noticed after they've done something to warrant getting a horn blasted at them; also, the likelihood of you honking a horn instead of, or while, avoiding whatever bad driving is happening to you, is small.
Finally, how do you feel when someone honks their horn at you? Does it make you happy, or angry? A loud horn is more likely to escalate tension, than to alleviate it.
For a cyclist, a loud horn might make you feel better. But it won't save you in an accident, and it's extremely unlikely to change a bad driver's behavior, or prevent an accident.
On the other hand... a camera, if seen in advance, is likely to change a driver's behavior. If not seen in advance, at least then you have evidence of their bad behavior.