How is 10% pos minting going to influence price? It's a bit steep?
Not really. That's an annual rate, and when it comes into place the coin becomes pure PoS, so you'll only buy able to buy it. There's a ceiling on how many maximum coins there can be, and also;
Its Proof of Stake you get interest for holding the coin initial minting interest is 10% but as more coins are minted and more wallets holding it will decrease variably based on PoS difficulty.