This is mostly for new players seeing themselves as geniuses.
If everything goes well for town (n1 only 1 person died, no one was lynched d2 or there was 1 for 1 lynch) don't false claim as town.
Mafia has much more info than town, so if you try to outplay them by false claiming then town will also be confused and in most cases you will be lynched.
I see a lot of that and then person who tried this "outplay" calls town members names and have no idea how they couldn't see through his play.