Staking can be useful and profitable if the price of a coin is stable or increases from the moment we started staking.
Currently DOT is indeed in its heyday and the price continues to rise, maybe if the DOT price is stable or the price continues to rise, then staking on the Polkadot coin can make us raise capital to trade.
But if Polkadot continues to fall in price and then from the fundamentals of the team just let it go, it will backfire for us and could be detrimental.