Vinegar in soap making

Has anyone else used vinegar as a water replacement? It increases hardness and shininess and lets you unmold quicker.

Plus it’s a bit of a chelator. There are diego agent better chelators but it has a little bit of that action.

Just make sure to use a soap calculator that adjusts lye use or make the adjustment yourself. You have to add a bit more lye to make up for the acidity.

I’m curious because I replied to try vinegar for someone asking about how to make a harder bar to try vinegar as a water replacement and got down voted to oblivion and was wondering why the hate? Am I missing something?