To be fair and contribute my :twocents::

Lincoln is pretty defensive for someone who only has one vote, as has been mentioned. That could be either mafia or town tactic, depending on how good the player is because bad/inexperienced players tend to panic easily. They have no self-confidence. Giving up easily? Another characteristic of an inexperienced/bad player.

However, ratting on one player and then voting for another? That's wishy-washy, which is a scum characteristic. Navi from Retro Game mafia is a prime example of this.

But, I'm not entirely sure I'm going to vote for Lincoln because my gut says he's just a bad/inexperienced player. We'll see, though.