"However, there have been times when electors have voted contrary to the people's decision, and there is no federal law or Constitutional provision against it."
The United States is not, nor has it ever been, a democracy; it is a republic. You are electing the electors who then cast their vote for the president. When the elector votes contrary to the popular vote, it's the same idea as a president who doesn't do what he promises during his campaign.
Perhaps mstefff is a democrat (small d - an advocate of democracy) and doesn't believe in voting within an electoral framework that isn't truly democratic.