G'day Molu,
Wikipedia is not a democracy, we need supermajority instead of majority to change status quo (though whether this is the best way to go is another question, but that's the way things currently are and not likely to change anytime soon), and if we did have the
Umm, *no*. Wikipedia is not a democracy, and that means *fD don't operate on supermajorities any more than they operate on majorities. You get 67% support for deletion on an AfD with all deletes saying "nn d" and the remaining 33% saying "keep, verifiable, notable, editorially appropriate, and the article's currently featured by /The Guardian/ as an example of why Wikipedia is awesome" ... and then ask a sensible admin to close it. Guess what? It ain't gonna be a delete, baby.
supermajority against an image it would be automatically deleted by the IfD system without need for unilateral actions.
IfD discussions (if there *is* any discussion) are interpreted by a closing *admin*. It's not automatic at all. Like it or not, a lot of functions on Wikipedia are carried out by admins. If your problem is with the concept of admins in general, then you're living in a paranoid fantasy. If, however, there are particular admins who cannot be trusted by the community to carry out normal admin functions, then those people should not be admins.
Unfortunately, these days when people talk about "the trust of the community", the community they usually refer to is not Wikipedia at all, but rather the fools at WR. The trolls are a community unto themselves, and people are actually paying attention to them!