In 2016, my husband and I listed the mother-in-law apartment in our basement on Airbnb. Since then, we’ve moved into the house next door, turned the upstairs of the old house into another short-term rental apartment, and hosted over 1,000 guests. We love welcoming people into our home, and we’ve learned a lot from hosting over the years. While there’s only so much one can extrapolate about humanity from having a short-term rental, there’s also a…