Nothing major has been spoiled unwanted this time.
I'm not so sure about that. I was looking something up via google the other day and found out a lot more than I had intended. I wasn't even looking for dawnguard spoilers, I was looking up a book from vanilla skyrim. To make a long story short, what I found wasn't info/screens of the item, but supposedly all race, armour, weapon, spell, enchantment, book etc IDs for Dawnguard, because there was something with a similar name included there.
If that was legit, it was a
huge spoiler. And if it wasn't, someone went to great lengths to make it seem legit, because the list was extremely long.