Jim Hague said:Unless, you know, it actually wasn't goblins. Perhaps it was something else pretending to be goblins. Perhaps the goblins attacked because the villagers were stealing their land, or murdering their kin. Again, it's those crazy roleplaying and story concepts...
We're talking about goblins here. You can make up as many alternate plotlines as you want, but it doesn't change the fact that goblins attack human/demi-human settlements, steal, take slaves, kill people, etc. This is per the Monster Manual. Goblins may behave differently in your campaign world, but that's not pertinent to the discussion here.
Jim Hague said:Again, I ask you to actually support the argument that you're making - which is that the PCs know the information contained in the writeups from the MM, without having the appropriate Knowledge skill.
Since I never said the PCs know the information contained in the writeups from the MM, you are arguing against a straw man here.
Sheesh.
What I actually said was that one particular section of the goblin entry in the MM describes the way goblins behave in the world, and since goblins are common monsters, this behavior is going to be common knowledge to many people in the world, since it directly or indirectly impacts upon them. Thus, this knowledge is likely going to be either already known by, or easily obtainable by, the PCs.
Jim Hague said:Common in what campaign world? Again, you're really making claims here you can't support.
They're supported by what's written in the Monster Manual, to wit (emphasis mine):
However, if (goblins) are left unchecked, their great numbers, rapid reproduction, and evil disposition enable them to overrun and despoil civilized areas.