I had never consciously thought about subvocalizing or not, but now that you mention it, yes I don’t subvocalize when I read. I don’t even hear the words as a voice in my head. I don’t know if it’s good or bad, but I can assure you that I understand what I read .
I also don’t subvocalize when I think. It would slow me down, as I can think much faster than I can speak. As a result I often don’t know which logical path I followed to reach the conclusion I reached.