Is user meta will be same for all blogs?

Hi all.. It is my first post ??

I run a wordpress multisite blog, it use buddypress that multisite activated.

When i update my profile on blog1.domain.com, then my other blog eg blog2.domain.com will show same profile info like on blog1. U can check/compare it, this is two different post on different blog, and it have same author info. Article1 and article2

I don’t want it, because each blog have different niche. I want show different profile info (author bio, homepage etc) for each blog.

Please help..