LF- I just figured out what you meant when you said that it’s my own chiddush that if MSR turns out to be true, it’s still MSR. I wasn’t being medayek in my loshon – what I really meant was that it still doesn’t fullfill the prerequisite for Loshon Hora l’toeles if the person speaking didn’t know that it was definitely true.
One of the prerequisites for Loshon Hora l’toeles is that you have to know that it’s true. That means that Motzi Shem Ra can never be l’toeles, so I was using the term Motzi Shem Ra instead of “loshon hora that you don’t know is defintely true”. But technically, they may not necessarily be the same thing.
My point was that if you say something that you do not know is definitely true, then even if it turns out to be true, you still did an aveira. Technically, it’s possible that the aveira is not called Motzi Shem Ra but rather Loshon Hora not l’toeles. So I may have used the wrong term (although I’m still not sure about that), but my point remains.
Thank you for pointing out my (possible) error in loshon.