I recently got a friend into the game and they have been trying to buy a house for over a month now. I knew there were bots but I a little shocked with how efficient they have become. On Faerie there is this group of lalafells and they have a method where they have been buying multiple houses a day. Just today they bought 3 in fact.
A group of about 4, all in the same fc and low level in starter gear, stand in front of the board and stagger their clicks so there is no delay in click time. You can watch their heads move in succession, one after the other.
They sit around until the house is bought, then one of them stays to put an aetheryte and house down while the others head off to the next available plot. It looks like they drop out of the fc and join another one already at the rank needed to buy the next house. Rinse and repeat.
I'm sure it's been around a while but with such robotic efficiency how can any one person hope to overcome the odds? They don't always win but if you can buy three houses in a day I would think that's pretty clear you've stacked the odds way in your favor. I'm pretty sure they resell the house for RMT. They sure are on top of it likes it's their day job.
There are probably a bunch of posts about this but I wanted to add my experience as well.