Since you mention interest, I'm thinking that's part of the not-so-stellar spelling of my DS6. I don't think he sees the point of it. He was a very early reader, and so I assumed that when he started spelling (which he refused to do until kindergarten) that he would recognize that a word looked wrong if he wrote it wrong. Nope.

I've always been a pretty decent speller. I do notice if things don't look quite right.