This is really disappointing, considering Gany and Derp both joked in it. It was locked because it brought up a very real grievance with an admin. There are many threads in the hog pit specifically made to talk about a single person, and the distinction between staff on a GAME being fair targets and staff on this board not being fair targets is a bad call.
.
The locking of the thread in politics was just as disappointing, because it wasn't locked for the reasons you posted. It wasn't vitriolic. You locked it because an admin was acting a fool and people were calling them out.
People who did not have Derp blocked before now cannot block him, because he is an admin.
This is a problem, and you need to deal with it.