[sldev] CAPTCHA to validate land sales.

[Dimitrio Lewis]

Unfortunately sale mistakes are quite common.  I don't know the full 
psychology behind it, but I imagine the causes include confusion, language 
barrier, sleep deprivation, dyslexia (which we all have to some degree), and 
an automated mental state caused by the monotony of listing hundreds of 
parcels of land each week.  It's deceptive.  Some land bots profit a lot 
from mistakes, and the worst affected by it are usually newbies, the people 
who need our help the most.  While some land bots are ethical, many are not.

~ Dimi