My oldest account on the network is Area 51, followed by Mi Yodeya. I recently filled out the "about me" section on Mi Yodeya (but nowhere else) and did not choose the "update all sites" option because my blurb is pretty specific to that site. I intended to have that blurb on exactly one site. I was surprised tonight to discover that that blurb is now on my network profile, where I see no "edit" link.
Am I stuck with either having a site-specific blurb as my network blurb (because it's my first non-Area-51 site) or rewriting it to be more general? Or is there some way that I can independently edit the network profile? (Or designate a different site as the default?)
This feature request shows that someone else had this problem too, but I'm asking for support, not for a new feature, so I'm asking this separately.