WoW, to 1. and 2. YES great idea.
1.
That is what I asked myself, why are the invasions coming after I made peace (tribute) with those goblins or after I defeated their CHIEF.
Shouldn’t they be impressed or terrified or pleased enough to stop their attacks or make the attacks more terrifying for me?
random quest chains, example
starting with, give me 10 wood and after some quests, kill the giant treant and we get a new reciep, or weapon, armor or or or