I too support the implementation of more random danger, and I like this idea of having potentially stronger creatures coming at random during the night.
I think another great idea, which came from Mailbox 2100 in that thread, is to generally randomize all enemy encounters all over the PotM world.
Here's what Mailbox suggested:
What I'd pay a subscription fee for: is just completely variable spawns on PotM. I hate knowing precisely how to handle every area and dungeon. The mystique is gone, and most things are all but an exact science. I think adding randomness to night spawns in particular is a GREAT start. Make it so that there's a chance nothing can happen, or rarer chances of terrible things spawning.
Though Mailbox was largely referring to the night spawns, I think this idea would benefit the atmosphere of fear if done all over the PotM world, regardless of day or night.
I'm not that experienced in the world yet, but even I already know a guaranteed safe path to Krofburg from Vallaki, during the day, because the dangerous enemies that are supposed to occupy that path and make solo travel dangerous can be completely avoided 100% of the time if taking a certain path.
As Mailbox said. The mystique is lost when avoiding danger is easily done down to a science.