Yea, its kinda like how I read "World Of The Worlds" way before the movie came out. I was familiar with the reference material and it helped to shape my understanding of the movie. Basically, this poster is throwing a bitch fit because people have read the comic and know whats going on. It doesn't spoil the freaking show if the show is adapted from a comic. Technically, the show is already spoiled.
In the comic, Merle doesn't exist..but Hershel is a LOT like Merle in terms of his attitude. In the show, Hershel is just a humble religious farmer...in the comic, he's a sometimes humble religious farmer redneck that uses the N-word.
I suppose the blood is not a problem as long as there aren't breaks in your skin for it to enter your bloodstream. Technically, they are carriers of the Virus. It's similar to people who are carriers for diseases that don't affect them until there is a trigger to set it off...which I think is why the bite actually turns people.
Either that or the zombies just have some killer Komodo Dragon saliva that just kills people and then everyone comes back as zombies :biggrin: