In the context of atheism:
When I look at his work, I am truly not impressed. Surely he knows a few things but it seems to add very little to the actual discussion.
Like I know a lot about e.g. computers but when talking about geopolitics, my knowledge about computers is not entirely useless but most interested people are already aware of the key points of anything I could say in that regard. So I probably should not waste my and your time by talking about that.
He did just do that. Again and again. On reddit, people would call it a circlejerk.