As so happens, I got into a political discussion on social media the other day, and in the course of things (as things go in these circumstances) came up with two criticisms of the ever-so-popular party-line voting strategy employed by a lot of voters, where they vote party every election, from the perspective of a voter:
First - consider some party, say the Whigs. You vote for them one time, and they win and do what you want. You’re happy. They’re happy. The next election cycle, you vote for them and they do something you don’t like at all. The next election cycle, you vote for them again and they do whatever they want. At this point, the Whigs have absolutely no incentive to do anything you, the voter, wants, despite your vote, because you have shown no motivation to change your vote based on their behavior.
Second - consider the same behavior, always voting for the Whigs. What strategy would the Whigs or an opposing party (say, the Democrats) have to alter your vote? The only option for the Democrats here is to forcibly remove your vote, and for the Whigs, to defend your vote if the Democrats attempt to remove it.
It seems to me given these conclusions that faithful party-line voting is a terrible idea.
Other voting strategies that people commonly employ that have problems?