It's been my experience, having been diagnosed at 18 years old and navigating the complicated dating/hookup scene for the last 22 years, that putting your status out there right up front serves as a sort of snow plow to weed out anyone who isn't comfortable being with a positive partner and leaves (mostly) just the guys who are more open to it. There's no getting away from the occasional judgemental jerk who goes out of his way to make sure you feel adequately ashamed of yourself while inflating his own sense of superiority, but you just have to see those assholes for the shallow high horse jockeys that they are and tune them out.