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?
but there is no guarantee that the CNB token later when sold will be worth the initial estimate (200-500$), it could be later when the CNB/BTC pair market opens next year (available) will only get a value of less than 10$, no one knows that. that the estimate price is just like speculation, as far I know CNB token no have market yet.
You should read the post on the first page, someone has already provided the link;
Not so sure about the CNB token when it will enter the market on the exchange itself, remember the CNB airdrop hunter is very much especially after the pairs are opened, I am sure there will be many who sell rather than buy it? what is the advantage of this CNB token?
So I am still wary of what they offer via airdrop with an estimated $ 200-500.