Happy to have people disagree if they state why. Promotes learning.
This is another one which keeps coming up on meta.SO. the main answer for it is here. Allow users to leave an anonymous comment when voting
I don't think there are any plans to change the process
Voting is anonymous, commenting is not. Forcing voters to "come out" and defend their position is undemocratic and will put people off voting.
Incidentally, if you want to raise a specific issue with a post but do not want to publish your complaint in a comment, you can choose to flag the post and describe the issue to the mods instead. It's not anonymous but is private.