this is assuming two things:
mafia has an investigative role that they will use to pr hunt (they do not)
the joats will not try to end up in the town reads of the town so they don’t get close to being lynched and needing to claim (they would like to not be lynched or need to claim)
like there’s a chance that mafia strikes town members who aren’t talking much and trying to stay out of the spotlight. but in that case they still clear out the poe because lurkers don’t usually get that townread regardless. but more likely mafia will go after obv loud town to try to control the day and just hope they hit a joat sometimes