some interesting bedtime reading about basefex: https://bitcointalk.org/index.php?topic=5160738

TL;DR basefex faked volume using using real market orders with their own money. a trader figured out their algo and made 11+ BTC profit gaming it. basefex caught him, banned his accounts and froze the money he hadn't withdrawn yet. then they made up some story about how he DDOS attacked them.

so i'm not sure how "legit" they are. they seem really amateur. exchanges like this are liable to exit scam. not necessarily because they are malicious but because they are small-time and incompetent.