The sig notification requirement suggests that approvals would only be made for members who meet the 90/90 requirement. Plus, some folks turn off display of sigs making that less useful as a notification means.

Beyond those technical limits, I cannot fathom why the community would ever see fit to deny such a change as a one-time courtesy to a member. For ANY reason. What good does it serve to be so limiting? All the fine print and couching of terms seems to be more about exercising control and a display of power rather than actually helping members of the community. We're talking about a one-time change here, not allowing folks to do so with frequency. How is that a bad thing?

Oh, and apparently it isn't only the CD who makes such changes.