You don't seem thrilled about the idea. If the SAFE Network community is against it I will not waste my time pushing for it. Maybe there are other plans?
Otherwise this can be an opening for collaboration. Why compete? Bitshares 2.0 is the best technology for decentralized exchanges and SAFE Network will not be able to out exchange it, but then SAFE Network could be the best technology for decentralized storage, which is useful..
SAFEX I don't really see it working out so well. It might make sense for people who are already into Safecoin but it's not going to be for speculators. SAFEX will be for people willing to take the risk of using Safecoin and Safecoin is pretty risky compared to most other technologies.
For people just trying to buy Safecoin or speculate, they'll probably keep using centralized exchanges or they'll move to decentralized exchanges. Polo is probably one of the best centralized exchanges, but for decentralized exchanges Bitshares is it.
Centralized exchanges have risks of being hacked, of being shut down. Bitshares will never be shut down or hacked.