What area? As I understand it, there's several mushroom infestations in different places of the map.
Like I said, There was mushrooms growing on both floors of my house, and they can't have come from my farm, it is several layers underground and walled off. And then there was mushrooms in Cadrin's lighthouse, which is p far from my place. Then the areas you're mentioning.
Dude, someone's spreading these around
I completely agree. It seems that someone had a little fun, and it got out of hand where it went unchecked.
Based on what I found while cleaning out the village, someone placed 1-2 mushrooms in every area that the infection couldn't spread itself. My office had one on each floor. Stuffman's house had mushrooms on every floor, as well as his small balconies. Sunny's castle had it worse: Nearly every bit of the castle interior was covered. Someone even went as far as to place them on every tower roof, but they couldn't grow in the direct sunlight.
People who used LWC protection on their doors most likely didn't have an infection. They never got their "starter mushrooms"
Regarding the tunnels - The mushrooms will continue to spread down there since nobody is ever picking those. I suggest that we try to keep those a little more in control, so the entire cave system isn't overrun. This way, we won't have to seal off the caves entirely. If you do want to seal off the caves anyway, leave a door or a hatch so that people can access it. The mushrooms still won't be able to pass that barrier.
I don't want to completely eradicate the mushrooms from the server. Since they're so plentiful now, I use mushroom stew as my primary food. No more bothering with pigs!