Dev, what is the answer to next airdrop snapshot riddle? This is very important. Snapshot time should be clear to all participants...
This is a good point.
Airdrop conditions should be clear atleast to Riddle topic followers.
After everything i would recommend to hold 1 wave and not to sell any riddle, then the snapshot will became less important, but a clear
announcement is always fine, i agree to this.
It can't be much more detailed as this post with dates
https://bitcointalk.org/index.php?topic=1896243.msg19121673#msg19121673 
The dev support funds (1.000.000 tokens at 500 satoshi and 1.000.000 tokens at 0.00085 WAVES) has been removed!
The markets are wide open without any big holder blocking things now guys

So further that holding Riddle, which i already did, i have to hold atleast 1 waves in the same address?
I didn't sold Riddle, i bought more, but i keep my waves in another address (only a few cent on Riddle connected address), so i didn't receive second airdrop.