You should always be careful when listening to well known and widely followed investors

1. They know their every move is being watched. So they are careful what they say, what they do, and how they structure things

2. You do not get real time reporting for what they are buying and selling. You may not know what they own timely. Your information may be stale by the time you receive it.

3. An investor may state that they like this stock, or sector or investment. However, they may change their mind tomorrow, and sell it. You may not know what's going on until it is too late.

4. A large investor who can drive prices due to their size may have to spend a longer period of time accumulating stock or selling stock. That's why they have to try to move quickly, before having to file disclosures. E.g., took Buffett months to accumulate Coca Cola in the 1980s

5. They may also remain quiet about purchases they are making, to avoid driving prices up.

The investor may appear gloomy, and have others depressed about prices on equities they are buying

They may also talk up a certain investment, while selling.

6. You may never know the complete portfolio holdings for a large investor. That's because derivatives like futures and options may make it difficult to know if they are long or short. They may have other holdings in other markets that may not have reporting requirements

7. Knowing what's in someone's portfolio is half the story. Understanding their strategy is a far more important factor at work. If you follow superinvestors blindly, you are at a disadvantage there. E.g., an investor may buy a stock, but decide to sell at a certain price

8. If you were to follow a superinvestor, you should also know that not all of their investments will make money.

If you stop following after a few bad investments, you run the risk that you will miss out on their eventual good investments. E.g. Buffett with $IBM and then $AAPL

9. A lot of times, people follow superinvestors when they agree with their pre-existing views. This could be dangerous, since those positions can change.

10. Large investors often may have different goals and objectives than you and me. They may be limited due to size to certain types of investments or instruments.

Their inflows/outflows may be different than ours too, which may impact how they invest as well.

11. I think th best course of action is to develop your own strategy, and use it to reach your own goals and objectives.

Following others may be helpful, but you have to do the work to create a strategy. Then you have to follow it, know it intimately, and improve on it

12. Having an independent view, your own strategy to follow, will provide with a better conviction through thick or thin. It would make you less reliable on others that may or may not even know you exist, and who are not looking after your financial well being.

Plus, it is the only sustainable long-term investing approach to follow.

E.g. Buffett may be around for a while, but if you are a 30 year old male following his stock picks, I can guarantee that Buffett won't be around for the next 50 years that you will be investing for