Because we live in an era of increased authoritarianism.
And the reality for those of us that don't like it is that authoritarianism doesn't appear from nowhere. It appears because of the prevailing attitude of large segments of the population.
This means that criticism towards authority is generally received with skepticism and a very high evidence standard is used to judge the 'correctness' or the 'paranoia/conspiracy' of the claim. This while simultaneously accepting authority claims with little questioning and zero, even negative demand for evidence.
I would agree the down voting is uncalled for given the good nature of the question. But given the previous explanation, I'm not surprised by it.
Edit: spelling