David from Xapo &/or anyone who can answer this:

In doing my due diligence and checking out the feedback on Xapo first, I'm seeing that it seems to be a favored wallet for Faucets.  Some, like Moon Bitcoin, make direct deposits to Xapo wallet while those with other wallets have to wait until collection day.  I'm curious.  Why is this? 

link for moon bitcoin is http://www.moonbit.co.in/

mari88 can you share how many users use instant pay with xapo versus address? Is it significant? 

Hi I have that script on a faucet but I got hacked. I'm trying to find the exploit that they use. So if anybody security savy could check up the code and find the hole it would be good.

I am creating a faucet and noticed why some faucets like motherfaucet, moonbitcoin and freebitcoin can pay more to users.

Looks like if you pay to users with the Xapo credit api you can do it via email ( if the user is Xapo user) or address (if user is non-xapo user).
Now Im trying to understand how faucets can pay more if they use Xapo.

Looks like if you pay to a Xapo user there is no fee because it's off blockchain. If you pay a non-Xapo user Xapo returns the miner fee to the faucet owner.

Does this make sense? Can anyone using them say if this is correct?