I guess you can write in a vote, t. But if you decide to do that why don't you just stay home and save some gas? A write in is a wasted vote. If you do not vote for moore you are voting for jones. Jones is not the Mr nice guy the press is trying to portray. He is a devious liar, and is misrepresenting his past political life to try and con moderate voters.
Like you I have sometimes been puzzled by Moore's legal stands in the past. However, if you do some research you will find he is not just some confrontational fool. He displays an intriguing and advanced level of legal history and logic to justify his positions. I don't claim to have the legal background to explain it, but it boils down to limits on federal power and even limits on the power of the supreme court, who have increasingly overstepped their judicial jurisdiction and taken power from the legislative branch in an unconstitutional manner. His opponents try to make him look like a religious zealot and fool, but he is definitively not.