It's all controlled by a single professor who is quite a ways outside of the mainstream, and consistently presents his small, and very nonstandard school of thought as accepted truth. Frequently without so much as mention of the actual standard interpretation. It's not a good place to send a beginner, and frankly not even that useful as a reference for an expert unless they are particularly studying that one small school of thought.

The SEP was a land-grab in the early days of the internet.