In fact, faucet payments are a plague to the network, and thus should at all times be made off-chain. I noticed that quite some faucets are doing this already, which is something I greatly appreciate (although I understand that it mainly happens to save on fees). All these faucet farmers are getting paid directly in their Xapo or Coinbase account, which takes a decent bit of weight off the network. Due to external fees not being free anymore, these faucet farmers need to accumulate their "earnings" for a good while, before they can request an on-chain withdrawal
How can it be so?
Why are the faucet payments a plague to the network? Just because they are small? Are you going to say next that they are close to being spam transactions? While the amounts transferred may indeed be tiny, I can't possibly agree that these transactions should be discarded or just effectively prohibited, for example, via high fees, as is the case now. In fact, by cutting these transactions off we are walking on a very slippery path, which will make Bitcoin into a sort of Berkshire Hathaway share worth hundreds of thousands of dollars per piece but without its base in the form of real businesses that prop its value up. Berkshire Hathaway is not backed up by its price, while Bitcoin is, in a certain sense, so excluding small transactions is like shooting yourself in the foot by undermining Bitcoin's own user base (which is what its future ultimately depends on)