Suggestion to house buying criteria
First of all, this is an MMO, if you want anything good you have to grind your way for it, and I'm not just talking about just simply grinding gil, because there're tons of bot crafters & gatherers out there. If you want to make it fair for the truly dedicated & active fanbase who played all the contents this game has to offer, you better set a criteria who can buy which plot based on their current level status
-LARGE plot should only be buyable by those who have reached lv70 in all jobs
-MEDIUM plot: cut the above criteria by half
-SMALL plot: cut the above criteria by half
How to implement this into the current system? make it so that until the next housing patch is established, house/fc owners who're not satisfied with the aforementioned criteria will have their current plot auto-demolished, not only this will fix the current situation of alts abuse, but also enhance the other gameplay aspect, like DF queue time, healthier ingame economy, etc. Please consider this SE.