People that have addresses that hold more than 50.000BTC could easily send thousands of bitcoins to other owned-by-them addresses everyday. Wouldn't this affect the bitcoin price?
Most of the old dresses are not actively sending
BTCitcoins, only in recent months some of the dormant accounts started sending the old coins in the past several years and if there is a huge amount of coins moving out from the dormant accounts except from the exchange accounts there is a panic in the market whether the old Satoshi coins are active again. How often are you seeing the whale alert in the past only in the past several months you are seeing an article about old wallets active again and sending coins, in fact not that much.