Right, I grew up in a school for the Deaf. I saw everything so I know what I am talking about. I would say that 25% of the students were able to understand SEE/PSE.
The point of this thread is that do Deaf people understand PSE song signed by soph1951? My estimate is that less than 30% of Deafies nationwide do. I don't count HOH, late-deafen people and others.
"Some people just can't get it" ...come on, they can't help it. Honestly, I tried to teach my deaf friends but they said it was too hard just like I tried to teach them some math. You call them low functioning which is a fact but it's not a nice word to call them. They are what they are. Nothing more or less. Some of them can fix cars. Some of them can learn how to do their jobs. Some of them can fix your house and so on. One person at DVTV pointed out that if a deaf person can do anything better than his/her grammar, then that person is not low functioning.
Edited: "Some people", if you mean other people who don't understand why ASLers can't comprehend PSE/SEE, my apology.