I disagree. Content is a free market aimed at sourcing as many eyeballs as possible. Stop giving them your eyeballs and we won't deal with it.
"Disclaimer: [$thisBlog] is an investor in [$company]"
...right underneath the story headline involving a company they were involved with. It would force "journalists" to at least pretend to be somewhat objective.
"Or, don’t buy a subscription and I will bash you relentlessly.” Most big companies paid up and considered it a cost of doing business."