TFA is talking about C2PA, a regular signature in the meta data. A lack thereof means nothing, but if it's there, the false positive rate should be near zero.
Yes, but I also think it will be trivially by-passable if you pass your output through another LLM. At least for text.
It might help catch students cheating, but not real spam-bot usage. As soon as platforms start checking for watermarks spambots will add anti-watermark passes.
The boxes have (weak) stripes. But screenshots of a webpage are missing all accessibility features, so links to the actual caniuse.com articles would be helpful.
I don't understand how e.g. reddit allows text-as-images when that is discriminatory for people with eyesight issues.
They have nearly the same information a normal user could get by running atop themselves, which reads the world-readable virtual files found in /proc. If you are using something like selinux to restrict access to /proc files, the same system could be used to restrict access to the /var/log files.
Just a heads up - some of the node colors can be difficult to differentiate for people who are red/green colorblind. Very minor, just wanted to mention it though.