AI tooling must be disclosed for contributions

I fail to see how this addresses the issue of poor quality contributions or bloat. I feel that focusing on the real issue would be more productive.

Shouldn't developer be responsible for every line of code he submits?

He is signing the code with his name when code is pushed.

How is it different from using every other dev tool?

The real question is: how long will it take to go from a sign of low quality to a sign of high quality?