I got this notification, just after the site being offline for a while:
you stacked 145653437 sats in rewards7h 61933284 sats for zapping top posts early \ 83720153 sats for zapping top comments early SN distributes the sats it earns back to its best stackers daily. These sats come from jobs, boosts, posting fees, and donations. You can see the daily rewards pool and make a donation here.