What do the newcomers wish to buy from vendors anyway? Whenever I go there everything is pretty much OP and can be bought much cheaper with coupons. You don't have to MvP to get coupons, there's always the stable ygg hunting/edp hunting, questing, and more. There's no short way out of starting poor, and working your way up except for donating. As for zeny value, I've already suggested above ways to combat the negative effects on zeny that this suggestion would cause. Of course,those that already have coupons will recieve benefit from the suggestion, but those who don't will also benefit. They can use the vendor to easily vend their items for coupons, perhaps making earning coupons better for them. But believe it or not, newcomers will have to learn the economy sooner or later if they wish to survive in this server. They can't just look to the past where their server was run with zeny, they have to look at the now, the server they're currently in. FRO.
sorry for the long post.