It is a smart way to invest. If you would have followed the Oracle Aka Warren Buffent, you would have been very happy with your returns the last couple of decades.
I am fairly new to cryptocurrencies, I have always invested in stocks. But even there I just follow, the big Guys.
Check out MSCI World ETF for example and any other ETF in the USA, you will see bigger companies like Google & Apple show up in all of their portfolios. The Copy paste technique does work for sure, but be sure to copy someone who is like the king of investors.
Have a wonderful day
Peace WoozelWazzel
It essentially becomes impossible to exactly follow what Warren Buffet does because he often acquires entire companies and dictates executive pay. He also buys preferred stock in situations where he isn't acquiring the entire company.
But I get what you are saying though. I'm not sure what I think about doing this in the crypto world. Pretty much anyone who has been in this for any length of time has gotten dropped on their head before. Sometimes the prices go down like guillotines.