Quote Originally Posted by zosia View Post
No stat is ever 100% accurate, but it's definitely representative, especially since we are talking relative comparisons (IE wind up bahamut to wind up tataru). I doubt those stats would wildly fluctuate if the entire game population was surveyed. Over 200k accounts is a pretty robust sample size.
It's a self selected sample size of people who care enough about minions to go to that site, and attempt to search with their character--thus adding that character and their minions to the database (mine is on there as of 5 seconds before posting this--and all the minions I own did, indeed, increase by 1 grabbing my own character profile and having the site sync it from the lodestone).

What this means is that the site will show a larger percentage of people owning rare minions, etc. than the population at large because it's not a randomly selected sample. It's a deliberately selected sample made up almost entirely of people who want rare minions.