I'm not sure if AI can do those today, but they probably can in the near future. (probably we will be able to see obvious "that can't be human" for a while longer)
If you (or even your pet LLM) is able to set up v4l-loopback and some convincing realtime image/audio gen I think that's a signal that your PRs might be worth reading.
The point at which an AI can convince me in a video call revolving around a complex social interaction like an introduction and discussion of interests that it's human I'm gonna go ahead and let it have the title.
It already can and it’s a big problem in recruitment. But for PRs I suspect it isn’t a big concern because this filter is to weed out PR spam from people who want to invest time in the project.