It would help if PRs from newly-created or private accounts could stand out. And perhaps PRs from accounts that spam multiple PRs with dozes or hundreds of commits, would have some kind of a warning that only people with write access to repos can see. In fact perhaps GitHub could throttle those accounts from creating that many PRs in the first place.

Another suggestion would be trying to figure out if a PR was vibe-coded and marking them as such. Same as image-based social media tries to do.

That makes a lot of sense, and we've been considering some of those options too so good to know we're on the right track there. On trying to figure out whether a PR was vibe-coded: in some cases it's obvious, but in many cases it's hard to figure that out without AI, and we're not sure we love a solution that requires maintainers to use AI to tackle AI. My hope is that if we can provide some non-AI tools first (disabling PRs, creating more visibility around new users, etc), we can then build better management and triage tools with AI second. We're working on an Issues triage agent now that we hope to bring over to PRs too.