The only thing they understand is money. Square Enix reads these forums. They know it is an issue and yet they do nothing. Why? Because people will continue to subscribe anyway. So why should they bother?
The only way they actually do something is when their profits start to take a hit. That's why after my 6 month sub is up, I am cutting back to 3 months/year.. and I'll dedicate more time to other games. I hear Ashes of Creation will be a game changer, so I might switch to that when it comes out, and cut out FFXIV completely unless I feel like they are putting my fees to good use and actually fix housing and/or the bot problems.