Ignorance or carelessness. What else?
we can't really generalise, can we??
My spelling mistakes are 99% due to haste, not ignorance.
Wouldn't those mistakes be typos, not spelling mistakes?
Some people that make spelling mistakes have been proven to be either dyslexic, dyspraxic or not have been offered a complete education. (Of course there are some that just dont care...)
i also think so, that is the fact for being afraid of English. its a easy language to learn. be happy with English!