An old thread... but still very relevant.
I think that the knowledge of MDD is rather low, as we are very good in hiding our illness from the outside world. People who are publicly coming out with their illness often encounter disbelieve and shock. Just look in your ring of people you know; how many have had a episode of depression? It should be at least 10% of the people you know.
The last couple of weeks I have been telling people that I am suffering from MDD (not everyone, but a good number). I had to as this time I have difficulties to get into a "normal" routine and am missing a lot of obligations. Several confessed that they themselves also have had to deal with depressions in the past. So there is not only a stigma, but it seems there is also an enormous taboo on the subject of mental health. I think in Canada thanks to people like Romeo Delaire, Clara Hughes and Magaret Trudeau the taboo is under attack... we will need to support these champions as much as we can.