Hear hear. The types of people that would stop being friends with you for not using proprietary software and platforms are the type of people that would stop being friends with someone for not eating meat, or some other ethical stance.

These are shitty shallow people, not real friends. Real friends will support, or at least tolerate, your honest ethics based lifestyle choices. Smart people often -prefer- being around people that think differently from them, and being different can even be an asset in making more smart friends.