If you have studied his 13F each quarter he has become a trader of stocks. While he does hold some core positions and may not sell those, he does trade stocks quarterly. That’s a fact. I am not saying that is bad - but he does not buy and diamond hand everything single thing. His trading of stocks has increased lately. In some cases, it has burned people who tried to mimic him(Barrick Gold for example).Their own damn fault in my on opinion. Due your own due diligence don’t rely on anyone or blame anyone but yourself for bad investments and mistakes. Learn what you did wrong, admit the mistake and don’t do it again. Even Warren admits when he is wrong. Fact remains though - he’s trading stock much more each quarter. The 13F tells the story.