Sorry for the delay, I don't work for EA and there have been so many issues here on Answer HQ since the new patch that it's been hard to keep up with all the threads while living my real life and trying to play IP so that I have an idea of what other simmers are talking about.
Well, I tried both situations:
- I started a new game in Isla Paradiso and no ghosts.
- I moved a sim to the library from Dragon Valley, loaded Isla Paradiso and made that sim merge with an existing household, as soon as the sim from the library appeared on the household I got the ''we have so much in common, I'd love to get to know you better'' from a ghost sim! That household did not have a ghost sim living there so it was very weird because I didn't even see a ghost sim around, but that was just it, I haven't seen any ghost sims circulating the town. Just out of curiosity, did you buy an existing lot or did you build one? Can you tell me the address of your sim's house?