While I can understand the frustration with having something "taken away", I find accusations of "greed" to be WAY off base here.
C&A have spent the last 13 months spending anywhere from 3-6 hours per week prepping for and then recording each episode, plus another ~2 hours for each editors note. (They've said in the past that they spend roughly the length of an episode in prep, and recording time is obviously longer than the episode length). That means, minimum, half of an entire workday, per week, for 2 of the 4 most important people at the company, devoted to a podcast. They then have to PAY Trevor (an outside contractor) money to edit each episode, and they then upload to a website that they have to maintain and, you guessed it, pay for. And they haven't asked us for a dime.
Now, up until now-ish, time spent on The Letters Page has helped C&A to get their stories lined up, which has been useful both for OblivAeon and for RPG prep. (This is, in fact, the very argument that C&A made to OblivAeon backers who complained that they were wasting time on a podcast that should have been spent getting OblivAeon finished.) But we're moving out of that phase and reaching a point where The Letters Page will no longer be directly contributing to C&A's productivity on GTG projects. So time spent on the podcast means time not spent developing/overseeing the development of new games.
Let's not forget that GTG is actually a game publishing company, and that publishing games is what allows them to do silly things like pay salaries to their staff and keep the lights on. You know what doesn't pay for those things? Spending time and money to produce a podcast for free. If C&A were being "greedy", they'd drop Letters Page the second it's not helping them release product faster and focus on more important things. But people seem to enjoy it, so they're willing to keep it going... but it has to at least be marginally worth it. (If I were to look at this strictly from a revenue generated perspective, I would probably conclude that the podcast is a waste, because I'd be surprised if whatever piddly amount the Patreon brings in is truly worth the opportunity cost of C&A's time.)
So C&A took something that gets a lot less listeners, and hid it behind the lowest paywall on their patreon. If C&A were being "greedy" they would've made Editors Notes cost more. They could've easily made it exclusive to the $5+ groups, but instead they're only asking for a dollar. That is less than a cup of coffee. Before taxes. At Tim Hortons.
Now, there probably are some listeners who truly can't come up with a dollar extra per month. And it honestly is sad that they'll be missing out on ~1 hour of content per month that they used to get for free. But they'll still be getting ~1.5-2 hours of free content, per week. Commercial free (so far as we know) as opposed to many other podcasts. That's a pretty good deal.
For everyone else, please take your moral outrage elsewhere. C&A are asking you to pay a very small amount for something that costs them time and money to produce. It's simple, really: decide whether or not the Editors Notes are worth $1 to you, and then either pay or don't pay that $1 accordingly. That's how capitalism works.
(Note: If you want to whinge about capitalism, I believe the most apropriate thread would be the one for the Vengeful Five episode, in which Proletariat was discussed, and which is found here).