There's certainly discrimination by your family against you if you are reproved or disfellowshipped, and you are most certainly treated 'coldly' and discriminated against at social settings (ie, by not being invited) if you are considered weak, have a reputation, or have expressed doubts about some beliefs. And JW's are the worst at gossiping about each other. I think one winter pioneering that's all we did was sit in the car trying to keep dry and warm, and moan about all the lazy sisters who couldn't be bothered joining us in FS in the week....