I understand your point. I would be willing to have my calendar up to date as my appartment is listed on other platforms. Of course sometimes, I prefer to keep it for renting on platforms, yet, I’m really willing to make it available as much as possible on HE, for a simple reason, I want to benefit from GP to be able to myself, go on vacations thanks to those points.
Havin calendar synced would avoid your two frustration points.
Interoperability of platform is a basis nowadays… You either cooperate or the ones who do will take your market shares. I’m talking about HE’s one there. So if you want HE to propose more houses where we could go simplifying interoperability is a must have.