The trouble with Wikipedia is that it's an inch deep.

That's not its biggest problem. Wikipedia is biased.

Of course there's political bias in the American fashion. But that's not all. There is bias about History depending on what country is telling the story. And there is a strong bias even in scientific topics (maybe specially in them) when there are commercial interests involved.

That's not specific to Wikipedia.

But when you research some topic, reading multiple books, you'll notice there are different opinions, you learn to discount bias looking at the procedence. Wikipedia tries to adopt a neutral tone and cite different sources, but sometimes it does a terrible job at it.