The goal is to keep the steamdollar at 1$. THis is obtained by offering people an interest rate for keeping steamdollars in their account.

Originally this interest was 10%, and the idea as that people would want to trade dollars for steamdollars, earn 10%/year. Last week, steamdollars were trading far over 1$. SO perhaps he interest rate was already lowered.

As with all cryptocurrencies, I suppose we will have high volatility, especially in the beginning. If you have faith that the 1SD = 1$ can be maintained in the long run, than Yes, now would be t time to buy :)