With the newest update being an almost complete rewrite a lot of Faucet Owners chose to make new database when reinstalling GR8. This would explain why you would see a drop in your ref earning. Referral addresses are of course stored in the database so would make sense that you would be starting with a blank slate again. Keep promoting your faucet list and your refs will build again. Currently there are more than 350 Faucets using the new version of GR8 so there is plenty of earnings available.
-AvalonRychmon.
Since looks you need to claim in order to be able to refer most listers are being scammed every time faucet owners "reinstall" their database.
Additionally the latest GR8 faucet script does not work with some ETH addresses. It just refreshes the home page without any error.