I just know that YPGNWtN4gHFDQUvU9eC8Xzss5JCyT1ozmv is BTER hot wallet.

YKMwM5jeTYp42YmiQ65dMCqJJavv6UpiHa is not Cryptsy hot wallet, maybe it is cold one.
But YKMwM5jeTYp42YmiQ65dMCqJJavv6UpiHa was receiving coins in two stages, first in 2014, and second after pause in 2015.
It had become with price 0.025 USD per YAC. It is likely to a bear trick.