I read some but am still confused. I would like to have most of my chars belong to a city, not just for the buff but also for roll-play purposes. So, like if I join a city(tram or fel) and donate 200k iron ingots I automatically become knight. And you have to be knight to get the buff like +5 SSI? What are the other perks? Do I get a discount on venders? If I do, does it stack with Honesty?