I didn't word it exactly like that. Let's say my house's name is Beach Runner's Crib. I was going to say, "Hi, my name is Jane Doe, and I want to welcome you to Beach Runner's Crib." But I was afraid that not everyone staying there would know the name of the house, perhaps only the person who made the reservation. So, that's why I added the "at which you are a guest."
I always speak in a very friendly and upbeat tone, and I do sincerely want them to enjoy their stay. The only reason I started doing this is because I thought this was considered a good thing to do from the collective wisdom of members of this board as posted in multiple threads last summer.
But since some people might be bothered by it, I'll stop doing it.