Stumbled upon this post and looked back at my account. The last bonuses I received were on 3/11/2018. I have a very tiny stake so perhaps the volume was less than 0.00000001 for a couple days on everything... but I frankly doubt that looking at my history.
Have you had any luck since your post a couple days ago getting KuCoin bonuses?
I picked up like 10 KCS around the beginning of February just to see what kind of rewards I could get with a tiny investment. Since then, I've picked up 0.000008 BTC based on my shares and the volume of BTC trading (Currently worth $0.07 USD) passively. I also have little tiny fractions of a bunch of other currencies but they haven't added up to as much as BTC so most are still $0.00 or $0.01. That being said many have been accruing far more than the minimum 0.00000001 for payout every day leading up to the 11th so I wonder if something changed.
I got my first payment today, but it was a tiny payment but I know it is working for a future post on my crypto blog ;)