Macarthur said:
This is probably the best and most thorough discussion about JP from a critical standpoint.
He is certainly smart and I have no qualms with him in his professional area of expertise, with some of the exceptions mentioned in the book like his penchant for enormous vaguery.
https://www.currentaffairs.org/2018/03/the-intellectual-we-deserve
And he's made his name by embarrasing unprepared college kids and reporters. When he has stepped up to people on a seemingly equal intellectual and/or professional level, he's been boring, at best, and at times flat out embarrased - like Dillahunty and Zizek for two. Hell, even Jim Jeffries made him look foolish.
The article essentially states Peterson is vague, verbose, and pompous. A lot of times, especially in his live lectures, he seems to be thinking out aloud, and there are times where he'll explicitly state that something is a complex issue, and go on to consider that point from multiple sides. These are actually things I appreciate about him, but I wonder if these are things the author of the article also considers verbose and vague. Still, even if the article is correct in its critiques, these are hardly the types of things you would expect Peterson to draw so much vitriol over. I don't think this explains that.
And boring is pretty subjective, I've found a lot of his discussions/debates fairly entertaining, and while I haven't listened to the Dillahunty/Jeffries discussions, I thought he held his own with Zizek (though if any of the debates were boring, that was one of them).