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 an expert on antivirus software. The signals he gives about the altcoins may be true or may be wrong, so it's best to research before making a decision. And we need to be careful. According to my knowledge, his twitter account has been hacked and appropriated, that signals may be wrong and this makes many people lose. Don't trust someone absolutely. The decision is your own