It definitely should exist. Some people come on here just to troll. This is an instance where it should be used.
Blocking people so they don't vote against you, is wrong and cheating in my opinion.
Caked out, BNAS, YC, Row, Celsius, lizman, and many more have done it.
It should be a thing that staff has to do for you. That way the person being blocked is for good reason, and not because you don't want that person to vote against you.
This is a good topic @
Aggo