Just like with the anti-gun zealots, I feel like advocates only want to help criminals and make it more and more difficult for law-abiding citizens from protecting their home and families.
If your device happens to capture a video of someone doing something funny, and you don’t know the person so you can’t ask them for permission to post it ... just keep it to yourself.
The lack of signs doesn't mean cameras aren't there. You can't go anywhere in the core without being on multiple cameras.