I agree. Also keep in mind that a lot of the people who post here are those who have been through hell because of their j-pouches and still refuse to switch to an ostomy, maybe because they're the ones who feel the most negatively about ostomies.
When I had my ileo created, the first WOCN who visited me told me to never call it a bag, to only call it a pouch, because "bag" is what people say when they're talking about it derogatively.
But among the general population... I think people just don't understand or don't know anyone who has one. I don't mean to be "TMI" but I try to be very open about having an ileostomy with my friends and family because I wish it weren't such a taboo. I'm going back to work soon and considering telling my coworkers as well -- I'm not ashamed, and again, I think things would be easier for ostomates everywhere if people knew more about ostomies and had interactions with ostomates who are comfortable talking about it. I haven't decided yet though because I don't want to make anyone feel like I'm forcing them to hear about something they can't handle.