Thomas Paine reached 100,000 American colonists with his Common Sense, a number that would today mean 20,000,000 in terms of population reach. And it never would have existed without a print shop and movable type. A failed corset-maker like T. Paine certainly wouldn’t have had the means (and probably not the will) to reproduce them all by hand.
Print technology keeps getting better as it evolves, and by better I mean easier for more people to read more things. The tract lived on through ‘zines for a few centuries and now seems to have mostly transmuted into the insta-published blog. Books — that walled City of Troy of publishing — stayed exclusive for a while but digital printing battered through the gate and e-books plum brought down the wall. But wither the magazine? A young politico can post her treatises for the entire world to find (should they choose to look). A novelist can do the same, and largely within the same format he would have 20 years ago. But today’s crusading magazine moguls don’t seem to have anywhere to turn for help overcoming the obstacles.