The whole turn down the difficulty thing is a bad argument. I could always say to others, just turn up the difficulty.
If your already playing everything on max difficulty, which I doubt, theres always hardcore mods like ravenhurst. I hear Roland's is pretty hardcore as well.
I think the default difficulty was pretty good in a17 and does not need any beefing up. But again I havent played a18 so maybe the rage thing is offset with other balance changes.
I get what you are saying. But I do feel like you are looking at it from the wrong angle.
First: this is not about difficulty, but complexity. To make fighting Z's less monotone. So turning up the difficulty doesn'T change that.
ALTOUGH changing the speed of the Z's does change the momentum a lot. But this is about variety. A bit up unpredictableness.
Second: yes and no. You are obviously right that one can spin this narrative in both directions...
But if someone is seriously overstrained by zombies on the absolute lowest difficulty (so difficulty, speed, no running and all that), they should probably go into gaming journalism (Ha! Cuphead reference, and yes I know the full story

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No but seriously. A horror survival game SHOULD challenge you. But you can not cater to everyone. And those that are THAT bad at the game... I'm sorry... but either need to adapt or play minecraft
You will never catch me saying "give every difficulty a 50% increase in difficulty". But you WILL hear me advocating for bigger Z's, more dangers and so on.
Make the game more complex. Give it more variety, even if, in the end it increases the difficulty a bit.
Tl;dr:
With this argument "oh will someone think of the new players" you can advocate against any change that brings complexity. "Oh why is there 3 new crafting recipes? Even more to learn for new players!" and so on.
Just tell them to lower the difficulty, speed of Z's and to use a bow if they have trouble in melee. At least until they have guns.
I'm sorry but hampering the development to accomodate new players is not the right way.
MAybe you could add a new entry into that weird tutorial manual thingy that no one ever read
Like when you get hit the first time:
"Close combat with Zombies is dangerous. Make sure you are prepared. They can make you bleed,stun or even infect you. If you feel they are too overwhelming avoid their range by using a bow!"
(and I know I do not sound as articulate as others... but that is the problem with speaking a second language

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