Blaine
Cis-Het Oppressor
I never found a use for the camera jammer. It seems like it'd be useful, but it never actually is.
It's a spoiler for me, but I looked it up anyway.
It almost certainly lengthens the time between the orange-lit "BEEP?" that warns the player they're on camera, and the red "BEEP!", which sends all the assholes in the camera room to your location—usually into a minefield, if I'm playing a Traps character. If it's a controlled location (read: area with merchants you'll never want to kill), you're often fucked as soon as it goes orange and the entire zone turns hostile, so no help there.
It's definitely not going to let you rob jet skis for the latter reason, or do anything but sneak past cameras a little more easily. Should be useful for min-maxers who refuse to ever take Interloper, not seeing that it isn't just a QoL skill but (aside from the marginal bonus MP while stealthed in turn-based) allows you skulk around much more easily without getting BEEP!ed by a camera, bumped into, or discovered through the suspicion system.
Trap Expert is also pretty good for the same reason, though not as good, because you can just fast-forward through setting up your traps in areas with no patrolling enemies.
But yeah, very marginal overall. The camera jammer sounds useful for uncontrolled zones if there happens to be a camera you couldn't sneak by without it, supposing you actually give a shit whether it sees you or not.