Some analyst investigation suggests that heavy transactions made by miners to exchanges effect BTC price, but here I disagree.

Analysis on Miners and Dumping

     Miner F2Pool recently sent 2k BTC on Binance in 2 transactions in 3 days, with some analysts believing it to be "dumping," linking the current price decline to this. But this does not explain why many cryptos remain idle in exchanges and wallets, their value falling even without being dumped, for example, the price of LTC has fallen without dumping.

Why I Disagree?

     Generally, miners mine for their own profit and sell the mined bitcoins to cover costs. This does not amount to "dumping," as that is the job of miners, but rather it is the only way Bitcoin comes into the market to enable its trading and other uses, and what F2Pool demonstrated is a common occurrence. If miners stop selling BTC, then nobody will be able to circulate it into the market.

Use or HODL?

     This is your choice. Remember when Jeremy Sturdivant sold two Papa John's pizzas to Laszlo Hanyecz in exchange for 10,000 bitcoins? The value of BTC started with this incident. Transactions of Bitcoin do not depreciate its value, as BTC is limited to 21 million and paper currency is unlimited. The movement of BTC in the market is a means to maintain its value.