LOTL, have you considered that the reason why so many people who are not of the 1.5% of Catholics who are ultra-conservative, FTTM (Faithful To The Magisterium), Cappa Magna admirers, read and post in NCR?
It's because they are largely shut out of the diocesan media - as is anyone who is not one of the above 1.5%.
Diocesan media often claim to be independent, but most of them are tightly controlled by the local hierarchy and/or stacked with Opus Dei members.
A theologian once wrote a scholarly piece about Reconciliation for a diocesan newspaper. When it was published, however, it was so heavily censored and reworded that it looked like a parody of what he had originally submitted for publication. He threatened to sue the paper for defamation.

A diocesan paper experimented with a "letters to the editor" section, but dropped it after 2 weeks because letters similar to comments on NCR started flooding in.

Deny the mass of the people a voice, and they eventually revolt, like in 1776.