Adds several activist defacements to the dataset

Closes #1194
Closes #1121
Closes #1074
Closes #1026
Closes #1008
Closes #1007
Closes #1006
Closes #1004
Closes #1003
Closes #981
Closes #955
Closes #950
Closes #949
Closes #935
Closes #928
Closes #925
Closes #919
Closes #903
Closes #902
Closes #901