I think the only one who can oposse to the self moderate topics can be the "freedoms fighters" who doesnt understand some basic and logic rules of the world.
Im not gonna talk this case itself, because i dont know him and also its not the main topic of the thread.
For me the most important poin of self moderation threads, its to avoid spam from newbies or accounts that doesnt understant the disscussion or they want to confuse.
Obviusly this can be used to not good goals, or for other pourpose, but that pass with everything in life, like nuclear energy, you can make energy or a bomb.
And this feature its very important in some games and rounds and other topics when somebody cant participate.
Also its a good tool to dont make the mdoerators work so hard, because you are making some of the work. Can you imagine the ammount of posts/reports they have to see if self mdoeration doesnt exist?.