A new account would tend not to have any history.

It seems uncharitable to immediately assume bad faith.

What is it about the content of the comment you disagree with?

I think it provides a further example to the parent post that regardless of what one thinks about the Act, the discourse isn’t entirely neutral.

There's a bunch of HNers who always rotate accounts. It's a little annoying but a green commentator in itself doesn't mean an astro turfer.

It's also a perfectly reasonable point, you just don't agree with it.