Yeah we tried CashRain last month, awful results...Mainly because it was mostly bots and no follow up from the people that followed our accounts. I think you bring up a great point, something like a 'HiveRain' of some sorts might be very popular.
!CTP
Yes, it would be interesting hiveRain but not only $Hive we could make it rain second layer tokens as well, the idea is good it seems to me only that you have to put a little spice so that the rewards are not so easy for the user or viewr or follower depending on the case.