seems not very useful looking from the reputation of coinsbit a little bad in bitcointalk. they do free airdrop in the form of CNB (worth 500$) in my opinion it's already too excessive especially from what I hear they also ask to complete KYC to get free airdrop. the problem is his reputation is bad.
i think they already doing the right thing to ask KYC because the amount is pretty high around 200~500$.
about the exchange reputation, can you share the thread link? because i thought that this exchange is a relative new?