He can have some very strong opinions which he has acknowledged in his most recent blog post and that can rub people the wrong way. But all my personal interactions with him (not that there have been many) have been pleasant.
In my experience Drew is a lovely person both online and offline so to each their own I guess.
It was far more than just "strong opinions you don’t agree with". I saw that he apologized for some of that, and my interactions were some years ago, so I'm not inclined to cite specific examples here – there's no need to drag up people's past sins if they're trying to move beyond that. But he really has been a right jerk at times in the past – to me personally, and to others – and from what I've seen it seems Drew today would agree with at least some of that too.
We all have our flaws; it's part of the human condition. What I always found far more objectionable is the exact opposite: people willing to make excuses for him because they agreed with his views. Your comment is a good example of that. I'm a simply guy: if I see someone being a jerk then I will think you're a jerk, whether I agree or disagree with you or not (that said, I have to admit I too have been biased here, and probably will be in the future as well, but at least I'm trying, and open to criticism and reflection on this).