I've used night vision, and Frontier's implementation isn't realistic at all.
Lose the bright neon borders around everything, and it would be more realistic. And with night vision on, make everything monochrome green.
- Night vision is monochrome green, and obviously makes it easier to see, but everything is green (and no, night vision doesn't give everything a bright white neon border.
- Frontier's version is an amazing tool for combat, even in daylight: Elite's version of night vision gives everything a bright neon border, so it's way easier to see ships, even in Nav Beacons, which obviously get a decent amount of sunlight. Too easy though and it's kind of silly.
You do realise that there are various generations of night vision. The first time I used one was the original 1st Gen mono lens (one lens), and yes everything was green, not very distinct and zero depth perception. God knows how the pilots flew using it, I had trouble identifying targets on the air to ground range. Just before I hung up the uniform I used the latest Gen system with 4 lens - very different, a lot closer to what FD have implemented to be honest (and yes without the border, I will give you that). One thing to remember with night vision, if there is no light, it doesn't work. Put someone in a sealed room with zero light sources and he will be as blind as someone without goggles, the system amplifies whatever light is available, if there is no light, there is nothing to amplify.
Back on topic, I wonder how many think they are being stealthy because they have bought a black paintjob? I remember one of my mates couldn't work out why he was still getting shot at because he had a black paintjob so in his mind, he was invisible. I had to explain it gently to him that targeting sensors don't really care what colour his ship is and if he didn't want to stand out then maybe his orange engine exhaust and purple weapons stream weren't a good idea!