Whenever someone asks about depression or suicide on Y!A, why do people suggest stupid things like this?

like "seek out God or Jesus" or "get over it" or even this doozie "suicide is a selfish act"? it seems like people don't take depression or other mental illness seriously at all, they just dismiss it in a haze of rah-rah talk. Sometimes that crap does not work and just makes people who live with mental illness frustrated. I've been in therapy, on medications, read lots of self-help books, applied their concepts...nothing seems to work. If all else fails, why not take yourself out?