1. Does 5% inactivity fee apply to bitAssets like bitUSD?
2. I remember that the interest of collateral (XTS) will go to holders of bitAsset. I believe this can support the price of bitAsset and prevent its price goes to 0. As the interest is got from transaction fees, will this calculation be based on block by block? If yes, I wonder what is the simplest way to implement it in wallet code as for each block you need to calculate that and adjust the balance of bitAsset holder.