RateCoin (XRA) is designed for long term oriented minters. XRA uses Proof of Stake to secure its blockchain and is designed with long term sustainability as its primary focus. Stake rewards are generous enough to encourage holding and minting of the currency, but are low enough that inflation problems should not emerge. RateCoin gives incentive to long term holders to take coins away from exchanges and stake them long term, in theory this should create an upwards pressure on the exchange rate between XRA and BTC or other currencies.

XRA is also designed to scale long term. Small time intervals between blocks creates blockchain bloat and can lead to a nearly impossible chain to sync after a year or two of operation. Large blockchains take lots of resources such as disk space and memory. RateCoin is designed with a 3 minute block target, meaning that approximately 480 blocks are added to the chain per day, 175,200 per year. Compare this to coins that have a 30 second block time that add 2,880 blocks per day, 1,051,200 blocks per year. The problem is that when a node syncs it has to scan and store every block. It is fairly easy to download the blocks, for example getting them all in a bootstrap.dat file doesn't take too long, the problem is scanning all of the blocks which can take days for certain nodes if the chain is too large. A large chain can prevent an exchange from implementing the coin and can make users hesitant to run the coin. RateCoin is designed to avoid these problems and easily scale over a long period of time.