Can't speak for the OP, but in my opinion its not the buisiness of any random person I meet on the street or am introduced to...but I do kind of prefer people I have close relationships with or am developing closer relationships to know I have some issues so they aren't shocked when something comes up. Also when getting to know someone better I would want to know if they have a problem with my having mental illness or not if so then I'd stop persuing that as I don't want to have close relationships with people who would dislike me if finding out I had mental problems.

IN some contexts it does make sense for people to know, but in other situations/contexts sometimes its best to keep it on the DL until you are sure its safe to talk about it...unfortunately the stigma does exist so not saying people shouldn't be able to be open but out of safety it might be best to keep quiet about it in some situations.