We paid out everyday around noon (GMT+0), as for expected reward, you can check out our delegator @j-o-n-t who delegated 100 SP, now getting 0.07~0.1 SBD everyday.
But as I said in the article, the user-base is small now because we need 1000 SP to be listed on steembottracker.com. When we reach that goal, there will be much more users!
And yes, the tag promoting feature is up and running as expected.