I used to be a game developer and I would agree that constructive critism is definitely useful and helps with forward development however non-constructive criticism and blatant rants that are meant to disparage the work put into this project is actually more demotivating than it is motivating.
They know that it's buggy, they want bugs to be reported, but threads like "This is so disappointing, 8 years and this is all we get?" and "Refunding the game was the best decision I made" is not constructive criticism. It takes a really strong and passionate team to be able to keep up with consistent updates when constantly being berated.
The whole idea of "no negativity, only positive vibes" is for weaklings who cannot take the heat.
Taleworlds is a business, the first month of release for any game is always going to be the most profitable. I don't believe that at it's current state it's worth $50 either (since the game has many bugs and my save game actually corrupted) with that said, Early Access is an early investment into an unfinished product. I do believe that once the game is finished that it will be worth the $50, but asking them to charge less is outrageous. That's like going into a restaurant and after eating their meal complaining that it sucks, asking for your money back, telling them that it would be good if they lowered the prices, and then leaving a 1 star review on Yelp even after dining for free. Does it happen all the time? Sure. But that kind of criticism is more damaging than helpful.
Except you are NOT dining for free and what you got never saw the inside of an oven.