Folks on Google+ noticed that Google+ has recently began nofollow many of the links in your profile by default.
So if you visit my profile page on Google+, the section where it says "Links", most of those, if not all, seem to be nofollowed.
Currently, the links you add in the "Story" section of your profile, do not seem to be nofollowed. I am sure that will happen eventually.
I doubt these links mattered much to Google anyway but now they don't matter at all, because nofollowed links are not links in the eyes of Google.
Forum discussion at Google+.