I agree to a certain extent on your point about puritans. However I know people that recognized they have a tendency to overdo news or social media as soon as they get a bit of it.

That might be partly due to the very nature of social media and news these days being made to be addictive eg. clickbait titles. Making people end up in a loop, without noticing and before they know it they've wasted hours on it or worse created a habit that is hard to control.

For which the only solution seems to be to go cold turkey in that case. As it seems much harder to reduce usage than to stop it entirely. So I guess it's a matter of what stage you identify yourself in, in this news and social media detox.