I don't know where else to put this and well, this thread made the most sense to me. This idea may have already been suggested but here goes.
I have been a long-time player, and I hear the same complaints over and over again in regard to the housing. Life throws a loop at them, and they can't return for a while and boom, all their hard work is gone. I would be a little (no make that a lot) discouraged and would even consider walking away from the game permanently. A while back, you gave the players their own islands. Got farming, husbandry, and even buildings on that island. Most people don't go back after they completed everything that could be done, and it makes that space ultimately a waste.
What if you gave the players their own house on each of those islands and make the zoned housing areas for FC's only? We already can visit each other's house and islands so combining them should not be I get that it may be a stupid idea but, it will be a subscription retention point to all players. Can you imagine how many people would return and be ecstatic to know that their hard work in design and placement is still as they left it? Yeah, it would be nice to have one of those aetherites available to port to their own houses though, it would not be necessary. You could up the limits for external and internal item slots/floors (which I also see a constant complaint for) for their personal houses while opening up more housing for the floating FC's out there.
I am sure this is a crazy idea, and it has probably already been suggested (as I have no desire to read through hundreds if not thousands of replies to this thread) multiple times by now. Kinda curious as to why this was not thought of by the developers when they introduced the personal islands in the first place.