As I read the posts here I am looking through the Shiro wards here on Coeurl. I see numerous RED text houses with no greeting still and many with no deco. By now, no deco at all, a locked up house and no greeting shows me that the owners are most likely "house flippers". Those are the people you should take pause with along with SE for their poor housing system.

I only have 1x medium house in the beds here and had zero inclination to attempt Shiro when it opened. As for the L-1 harasser(s), SE can see who made the alt and their text to you so report them and move on.