I voted "made no difference" as that's my personal experience...
However, one incident that I think warrants mentioning involved a friend of mine (female) and an aggressive driver (male) - I retell this without prejudice as I didn't witness it - the driver took exception to her road position, she's been riding & racing at a decent amateur level for years so there's no reason to suspect she was doing anything particularly wrong, but the driver lost his shoot completely with her. Words were exchanged, he then pulled in front of her and repeatedly accelarated & braked hard which, I'm sure you can imagine, was very frightening for her not to mention bloody dangerous - this was a LONE FEMALE. Eventually she gathered herself and pointed to her front light and shouted "I've got my camera on, I'm recording this!" and as you can imagine he left the scene at great pace...
A real camera would have been a great benefit but even a pretend one will do the trick...