The premise of that question is wrong.
I thought downvote meant 'I disagree' or 'low quality question'.
No, that is not at all what a down vote means. The tooltip clearly says:
This question does not show any research effort; it is unclear or not useful
If this had been 2008 then there wouldn't be much guidance to research but today the downvotes have been discussed ad nauseam. For a start the OP could have got the down vote meaning right by doing some minimal research effort. For example by reading Voting is different on Meta
The question you linked to invites us to do mind-reading of voters without knowing the voters. Answers can only speculate, make a best guess. That is hardly useful for future visitors.
The question you linked to takes on a loaded subject, makes some wide, generic and bold statements. It doesn't link to any concrete examples, we just have to take the OPs word for it and then it jumps to a conclusion. Between the lines some might read yet another attack on voters. It is hardly clear what that question is really asking, what kind of answer they expect and what future visitors will gain by reading the question and its answers.
Here is some guidance for asking about voting:
- consider both up and down votes.
- don't ask about motivation of voters, anyone is free to use their vote as they see fit.
- link to prior discussions that are similar but don't address your take on the issue at hand.
- link to examples to motivate the point you want to make.
- explain how the issue affects future visitors.
- explain how the issue affects the body of knowledge any Stack Exchange site wants to be.
- make sure the premise isn't already beaten to death many times before. We don't need more duplicates.
Questions that don't address above guidance have a much higher chance to receive lots of downvotes in a short timespan. Questions that do address that guidance might gather some up votes as well, to counter some of the down votes.