They're pining for the fjords.

Thus it has been since Colossal Cave.

I have a base on the edge of a Mountain biome and just hearing the wild ones howling away all the time has not exactly been good for my nap time. Worth thinking about future taming scenarios.

They didn't go crazy , they went wolf.

The question "A lot of people complain about XYZ. So why hasn't this been fixed yet?" means there are also a lot of other things to fix.

So why hasn't it been fixed yet? Well, why hasn't the boat floating in the air haven't been fixed yet?

The answer is: they're getting there. I'm sure the devs have the bugs and excessive howling tracked in their issue tracker somewhere.

Also, you can complain further here: https://steamcommunity.com/app/892970/discussions/2/3112542578519474635/

You can alternatively get a mod to turn off howling: https://www.reddit.com/r/valheim/comments/lx4mp4/mod_are_you_tired_of_those_wolf_howls_keezys/

dogs bark wolves howl, nature of the beast.