durr.. I was actually the one who said the Spanish comparison.. 
But I suppose you are right, people dont approach ASL as a second language. My dad said something long ago about this. He said teaching English to people who have only known ASL, without using ASL, is like teaching English to people who have only known Spanish, without using Spanish;and then everything gets lost.
Im not missing the whole point of teaching English to ASL users, it just bugs me when deaf people say "i dont care" when people try to correct them - for the better. I get sick of deaf people saying, "i dont care, im not going to be like hearing people, the deaf way is better." Well hello there, I'd like to see those people succeed with the type of reading and writing skills they have. Theres nothing more (other than arrogance and ignorance) that will upset me more than negligence - more with deaf people than hearing people.
True fact - the average American has a 5th-8th grade reading level. So what difference does it make?
