I am not against criticizing the company at all. They deserve it. But tone I think is a big part to play here. My issue is more with form rather than function. It’s like how I treat my friends and partner, or people in general (or try to anyways). If I am upset with them, I try to say why I am upset with them, as calmly as possible. I shouldn’t hide the fact I am upset or angry. And sometimes it’s unavoidable, or even needed to clearly express JUST how angry you are in terms of intensity. But I think when it gets to a point of belligerency and colourful adjectives it’s lost it’s usefulness.
Like, Fatshark was staying silent and getting bashed for not communicating. Fair enough. Then they provide a short update. Clarify the itemization changes are a rework and including crafting, and more! Fantastic. It’s not going to be in place for the 25th of June (understandable to be disappointed in this) but they still get taken apart. I just don’t see how they can win 
Like it’s different to say “You need to work on faster content, communication, and delivering on these failed promises like solo mode and a better item progression system. It’s unprofessional to promise things with dates and then go silent.” VS “FS is a bunch of losers and incompetent and etc.” I just don’t find the latter as constructive. It’s useful in the sense that it displays the intensity of the emotion well. BUT! I feel it does a disservice to you, the consumer as well. Because they can also write you off as too emotional, too irrational, unable to be pleased, to be ignored, etc. I think if you levy harsh criticisms with a different “tone” I just think they may take you more seriously and put more stock into it.
Humans in general, if they’re met with indignation, will want to fight back out of spite or vengeance even. (Maybe this is where the player hostility comes from? Jk).
I don’t think people are going to change, least of all by what I am saying, and I agree they need to do all the things you’re saying. I just can’t help but feel that the silence we get is a response to that. It’s a feedback loop. We get angry, FS gets more quiet, we get more angry, etc.