Yeah, Tether might be good for now, but you can never know when it might just snap, because it's centralized and it's not secure. Since Tether is widely used, when it goes down, the whole market will go down with it. I mean not to 0 or anything like that, but it will take a huge hit I think.
Anyway, there's definitely demand for stable coins. SBD should've been that stable coin since the beginning, but it's not yet there. I think there's something like Bitshares USD, which is basically a stable coin as well and it's on a decentralized exchange, which is even better.
Are you very sure bitshare is stable? Would do my research on that.