There is a case to be made that the protoss do have actual scans.
The question though is whether 'hazy' was simply meant to push suspicion or whether it was truth.
I mean, I haven't seen any analysis on this at all. No checking back to see if they actually pushed suspicion on radish day 2, no posts, no followup questions, no pinging the audience for a potential mafia confirmation, nothing.
It's just thrown in the garbage, like a waste of time. That just doesn't come off as town play.
I feel like that should be ringing alarms to someone who thinks himself guaranteed town.
I would think that of the two possible choices, the one who knows he is town would look at that hazy read, KNOW it meant ghost, and try to use that evidence to find confirmation.
Like, if I were in imp's shoes (and were town), I would KNOW that radish was the ghost, and the hazy scan (despite coming from mafia) would confirm it to me. I would probably try to create a scenario in which mafia felt comfortable in confirming the scan somehow. I certainly would not be asking the zerg what we should do.
That's just what I would do, maybe I'm wrong for thinking that because he's doing the opposite, he's scum. But well, you get my point.