Keep or Transfer Coins after mining reward? I've been mining ZEC (pool) for the past month and noticed that most of the other people in the pool never had any balance on their wallets if I viewed them on the zcash blockexplorer.

Is there a reason why people immediately transfer their coins to a different wallet?
Is there a reason why people immediately transfer their coins to a
  different wallet?


If someone will hacking that mining pool, his able to steal all users coins. Move money to the cold-storage is a good practice. They're also can just move money to the exchange.