"...What do you think would happen if I put the goo scraped from inside the vanilla pod?..."
Like the others are saying -- you'd get little brown speckles in your soap. The scent won't survive.
Think about it.
An essential oil is incredibly concentrated. You need hundreds of pounds of vegetation to make a single pound of EO. Some EOs like rose require more like thousands of pounds of petals per pound of EO.
A fragrance oil is extremely concentrated too. FOs are specifically formulated to be strong enough so they can be used in diluted form.
Even with these highly concentrated chemicals, you STILL have to use an EO or FO at somewhere around 3% to 6% of the fat weight to get any kind of decent, lasting scent in soap.
So now think about vanilla extract, whiskey, vanilla bean ... does it seem reasonable that they can provide a sufficient amount of concentrated fragrance to do an acceptable job of scenting your soap?