Although we cannot get access to exchange kyc and even asking would be unsavoury, we can ask exchanges to block airdrops from specific accounts, they know :)

The can then do as they please.

• ignore us
• send it to dao or null or wherever steemit money is going
• keep ot for their masters or use it to onboard
• profit

The point is we can ask for free. Also I think binance and huobi owe the community this.