Even a small house has dozens of addresses. I checked and there is a different address in my kitchen than my bathroom, based on what3words website. If you find a certain combination offending, you can choose a different one, but on the other hand, on a single property there could be thousands of addresses, many of which funny or embarrassing.

Somewhat off-topic, but this seems to me like it could also be useful for automated drone/self-driving car delivery in The Future (tm):

You could literally direct the packet to your front porch, balcony or whatever else place is best for you to accept it.

Or you just use geocoordinates like everyone else. This project is aimed to make addresses more memorable for humans, machines do not have such a problem.

Machines do not. However, humans would find it difficult to memorize the GPS coordinates for their front porch - which is why trying an approach like this with pure GPS might not work.

That would be perfect! Awesome comment.

Each what2words is supposed to correspond to a ~3 (or is it 9) by 3 metre square.

Let's not forget https://www.google.com/maps/dir/Kissing,+Germany/Petting,+Ge...