Okay, I'm ready to post my thoughts.
I'm fairly certain that Raging Bull is mafia. Reasons are...
1. His action was very scum-like
Raging Bull wrote:
As for bmin, i should have thought about my action more, but i thought of possible mafia tracker is dangerous.
Town should not really be intimidated by a possible mafia tracker. Only thing that a mafia tracker would figure out is towns' target pattern (and even then, the pattern could always change). However, for mafia is a different story. Tracker is obviously a threat for mafia and thus, role block. You would probably think Watcher would be the biggest threat and you are right, which made them kill him.
My prediction of mafias' night action: Role Block tracker (me) and Night Kill Watcher (Pizzicato).
2. He pre-claimed action was too convenient. He claimed to protect himself, which has no risk of being spot out, unless the Tracker tracks him (oh hey, I just realized that he role blocked the Tracker). He could have saved the protection or just use it on a possible important PR, like watcher and tracker.
The reason why he switched his claim was weird, but I could guess that he was trying to earn some town points. He thought I was mafia because of my contradicting claim. He thought spotting out mafia for town would make him look like pro-town.
However, if he really was town, there are little reason why he would lie his claim in the first place. He would have said "I role blocked bmin" as the day started without a fear. Of course, there is a possibility that he thought I was scum before the night started and lying his claim was his plan, but he revealed that he had no reads on my whatsoever. Executing such plan wouldn't have been viable without a read and that is the reason why his hidden intention seems scummy.
Vote: Raging Bull