>How does the UK's OSA target journalists, activists and whistleblowers?

The general context is it targets "anyone who angers the government". Being able to ban your entire internet if this becomes widespread becomes a very powerful deterrent to opposition. \

>Creating broad gives the police more ability to enforce their spirit. I think that's generally a bad thing when the laws are to do with civil liberties.

Given the histories of "enforcing spirits" for both the US and the UK police forces, I'm not sure how or why you'd have faith in their interpretations.

The police can bring up your info themselves without needing the ability to cut off someone's entire digitial landscape.