Remember how they bailed out last year? Anyone putting money on nova or nlexch shouldn't cry when those exchanges do an exit scam and pretend they got hacked some shady characters behind those platforms.
While we appreciate your concern you should be aware your information is incorrect.
Nova was bought outright and they spent months implementing security checks and upgrades and reached out to various coins (such as SexCoin when we were in the process of upgrading the wallet to Merge Mining with Litecoin) and relaunched just prior to Christmas. So no. Nova didn't "bail out" last year. Nor did nlexch which like Nova, Cryptopia and thecoin.pw exchanges halted trade in SexCoin when they detected (and at our request) 51% hacks.
On the other hand.
YoBit I feel is scamming their customers by refusing over the last 18 months to upgrade their SexCoin wallet as well as reconnect to the SXC block-chain. It is well documented in this thread, their own internal contact mechanisms and via social media posts over an 18 month period that we have been reaching out to YoBit who has ignored all our requests and then please that they (YoBit) upgrade their wallet and reconnect to the block chain.