I don't know either if to trust it or not (that's how I found this thread) but well, it's a new Exchange which makes the effort to build/be a DEX / decentralized Exchange - which is, in my opinion the future alternative to centralized Exchanges.

The main thread here on BitCoinTalk is the section for BridgeCoin, their internal Coin (as Bitshares is for their DEX) - it is basically built on BitShares: https://bitcointalk.org/index.php?topic=2015949.0

There (and the website) they state that even if the site goes down / disappears, the coins are safe as they are actually stored on the (Bitshares)BlockChain ...so in theory all *should* be save - ever saver than on traditional/centralized Exchanges