Hmm... no, I don't agree with you here, to be honest. Today's vote was always a close race between CivG and sprig: a couple of vote changes would have meant sprig's head on the chopping-block. And towards the end of the day, it was sprig attracting the votes (including his own) more than CivG. So perhaps he thought that it was a decent enough risk to take to just keep denying accusations made against him, change his vote to sprig and hope that the trend continued. 'Cause that way, he'd have been able to use his vigilante ability a lot more, because mafia don't tend to attack people who have drawn suspicion upon themselves unless they have an ulterior reason (when I've been mafia before I've always tried to make sure to float enough possible suspects around to keep a buffer of one or two days' possible votes between me and the public ire, and I'm sure that this is a widely-used strategy, so my guess is that baddies would wait for CivG to get lynched, based on the fact that oyzar's evidence against him was pretty good). Also I don't recall CivG saying anything about being strong enough not to fear the baddies (sprig said something similar, but that's all I remember).
TLO36 was a different case. He was a long way ahead of anyone else in the vote tally, and wasn't doing himself any favours by posting vague threats of a powerful ability to be lost, or making huge lists of suspects out of the list of people voting for him. To be frank, the only way he could have saved himself was a roleclaim, which is why I was bugging him about it in the thread back then.
His situation was: roleclaim and slightly help the innocents, or don't, and slightly help the baddies. CivG had a similar situation and to be sure, a roleclaim would probably have slightly helped the innocents (at least by finding out something about sprig); but not claiming also held a not-impossible chance of benefiting the innocents greatly, as detailed in the first paragraph, and I'm not surprised that he risked it. I probably would have.
