And my first thought was: so what?
Here's the thing about Tarot meanings - they evolve, based on the reader, the deck, the author, the school of thought, the time of the writing. Saying that "conflicting ideas" will confuse you is like saying there's a right answer in the first place. But worst of all, it's like saying you can know too much.
I'm a bookworm and, showing my nerdy roots again, a Ravenclaw at heart. I can't think of anything you could possibly read too much on. You should always, always strive to learn as much as possible - or you'll get locked into one meaning, and unable to be flexible when the need serves. When you're reading for yourself or for someone else, you'll find a meaning for the cards that just doesn't fit the rest of the reading, unless you're willing to think outside the box a little bit or go with your gut. Saying that's "too confusing" is like assuming you can't think hard enough to read the cards in the first place.
There are things to watch out for, of course. Don't scatter your energies and try to tackle too many books at once without absorbing all of them. Don't take anything as gospel without examining why one author feels one way, and another might feel a different way. Don't fail to recognize real, historical facts, because Tarot's genuine evidence-based history shows a lot about where it came from and helps you appreciate how it evolved.
But there's never too much information. There are only ineffective ways of absorbing it.