Let's say someone was asked "are you going to shul tomorrow?" and the other person answers "yes." Does that count as a Neder? BTW Rav Mutzafi says that Nedarim are only on Mitzvot, Torah etc.
Who came up with the Bli Neder loophole of: Bli neder I will help you do X Or Bli neder I will etc... And the list can go on and on. Who came up with addingBli Neder which basically means ...