There was a thread a year or so ago that attempted to debate the ethics of bike-cams. It stayed quite highbrow, but didn't last more than 4 or 5 pages. Better a tabloid-style rant.
For reference VDBP, many regular riders on this forum have found our motorised road user colleagues to be.......impatient. This wouldn't be so much of an issue if their impatience wasn't implicitly sanctioned by practice and custom. Not law you understand, but practice and custom. This extends to our law-makers, our opinion-formers in the the shape of the press and in many cases, our police force. The general attitude is - roads are for cars, if you choose to ride on them then you take your lumps. Lawful or not, riding a bike in the UK has become some form of 'original sin', worthy of blame in itself or at least contributory negligence.
This attitude is wrong. Morally wrong and wrong in law. I like to compare it with a supermarket queue. Imagine you're in a bit of a rush (aren't we all!) and there's an old dear in front of you. She's frail, like a small bird. In her basket you see some condensed milk and a copy of the People's Friend. This won't take long. But, she's trying to pay by card! She's put the card in the wrong way round!! She can't remember the PIN and now she's pressed cancel instead of enter. OK, OK she's paying by cash.........come on......what! You've got a tenner you old bag, pay with that!!!! What the f***, do you need to count out the exact money in 1p coins!??!?! Christ!!!!!!
We've all been there, but do you;
(a) Wait patiently. It's good to see the elderly retain their independence
(

Mutter under your breath but accept that you're going to have to wait
(c) Punch the old lady to the floor, screaming "hurry up and f**** die, I want to get home for Hollyoaks!!!"
Do I need to work the analogy? I'm happy to admit to (

but I doubt most people would consider (c) as morally acceptable. But option (c) is exactly how some motorists treat the roads - as their own personal fiefdom where the strong triumph and the weak are punished simply because they're weak.
There are people on this forum who hate car drivers, but they're in the minority. Most will own and drive cars as well as riding a bike. Crazy world I know, but it's true. Drivers or not, many regular cyclists will have suffered potentially life-threatening treatment at the hands of a motorist without the driver being sanctioned, despite injuries and witnesses.
There are many ways of levelling the playing-field and using a cam is a particularly effective way of doing it. Unlike maggers, I don't use a camera for campaigning, but I do regard it as insurance against uneducated motorists' attitudes and police indifference.