A lot of non-housing owners seem to want to have SE take houses away from people who currently own them but are inactive.
This is not a good solution, at all. Housing resources will still be extremely limited, and after the initial removing of inactives, which might clear up 20 or so plots on each server. After those plots sell up, then what? You are back to the same problem of all of the wards being full.
People who own houses are generally not going inactive without reason, and especially not those who are pushing for the relinquishing of the houses. If this system is implemented, you /will/ see more people logging in to keep their houses, with the occasional unjust punishment of a few people who had to go on leave for medical, personal, military, business, or other such reasons.
You may, every year or so, remove a house from someone who is truly forever inactive, who has left the game and is never going to come back, but is that really worth punishing potentially hundreds of homeowners who have to go inactive for a period of time that is not under their control?
The problem here is not people who are inactive, and the solution of removing houses from inactive players is not a good solution for all parties, even in a Utopian solution.
What we should be pushing for is, instead of trying to take away from current homeowners, urging SE to put more priority into the housing system, by upgrading servers, opening new wards, or even creating additional housing systems to allow those without houses access to chocobo stables, gardening, and for FC's - soon to be airship crafting.
**Edit** The following implementation is set to be added. Hurray! Alternatively, a short term way to open up housing to be more easily shared with friends. A nerfed version of a FC for personal use, even. With the ability to grant permissions to teleport there, use the facilities, or even remodel or decorate, this would essentially open up more people using personal houses with the limited resources that the servers currently have.
In conclusion, removing houses for inactive members would only open up a house or two every few months (if the removal period is akin to 4-6 months inactive), they would also be relinquished sporadically and without warning. This would leave such a solution to be beneficial for only a very, very small number of lucky individuals. It is not a good, nor fair, solution. We should be urging SE to invest in more servers for wards (even dynamic wards that automatically add as needed!) or allow a permissions system for current personal housing to a friends list, and not just to eternal bond members.