It seems that he is very active and kind of giving frequent signals, but apart from the effective antivirus, is there any particular reason to believe that his views are any better than others? I am just asking, as I have not bothered to research much 
he is a multi millionaire and security expert thus people give value to his comments on the coins but there are some claims that he demand for 25 btc and 15% of supply of coin for giving any status about the coin.... you should make your research before investing in any coin
That is a little bit of my point really. I think he is just cashing out his name and by doing so he is burning a reputation that has been earned through many years making recommendations on crappy coins and good stuff alike.