JBF doesnt seem like he is hiding by being silent, he hasnt been online for 2 days, thats since the game started, so doubt its a tactic.
You might be lynching the detective.
IMO, it might be safer to go for M.G, he is deliberately just voting Hoori, two days in a wrong, not posting anything else, and regardless of how suspicious or civilian like she is. Seems more of a possible G thing, then JBF, who may be ANYTHING, but hasnt posted because he hasnt been online since we started.